================================================================================

                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                            _______________________

                                  SCHEDULE 13D


                   Under the Securities Exchange Act of 1934
                               (Amendment No. 3)*
                            _______________________

                                   IHS, INC.
                                (Name of Issuer)

                CLASS A COMMON STOCK, PAR VALUE $0.01 PER SHARE
                         (Title of Class of Securities)


                                   451734107
                                 (CUSIP Number)

                                THOMAS J. MURPHY
                   C/O GENERAL ATLANTIC SERVICE COMPANY, LLC
                                3 PICKWICK PLAZA
                          GREENWICH, CONNECTICUT 06830
                        TEL. NO.: (203) 629-8600 (Name,
                        Address and Telephone Number of
                      Person Authorized to Receive Notices
                              and Communications)
                            _______________________

                                 APRIL 21, 2008
                      (Date of Event which Requires Filing
                               of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 1(f) or 1(g), check the following box [ ].

Note:  Schedules filed in paper format shall include a signed original and five
copies of the schedule,  including  all  exhibits.  See Rule 13d-1(a) for other
parties to whom copies are to be sent.

*The remainder of this cover page shall be filled out for a reporting  person's
initial  filing on this form with respect to the subject  class of  securities,
and for any  subsequent  amendment  containing  information  which  would alter
disclosures provided in a prior cover page.

The  information  required  on the  remainder  of this  cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 ("Act") or otherwise  subject to the liabilities of that section of
the Act but shall be subject to all other  provisions of the Act (however,  see
the Notes).

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---------------------------                          ---------------------------
CUSIP NO. 451734107                                             Page 2 of 12
---------------------------                          ---------------------------

--------------------------------------------------------------------------------
         NAME OF REPORTING PERSON
1
         General Atlantic LLC
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP       (a)     [X]
                                                                (b)     [_]

--------------------------------------------------------------------------------
3        SEC USE ONLY


--------------------------------------------------------------------------------
4        SOURCE OF FUNDS

         OO
--------------------------------------------------------------------------------
5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

                                                                        [_]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware
--------------------------------------------------------------------------------
                                7     SOLE VOTING POWER

                                      -0-
                                ------------------------------------------------
                                8     SHARED VOTING POWER
          NUMBER OF
           SHARES                     2,735,409
     BENEFICIALLY OWNED         ------------------------------------------------
     BY EACH REPORTING           9    SOLE DISPOSITIVE POWER
           PERSON
            WITH                      -0-
                                ------------------------------------------------
                                10    SHARED DISPOSITIVE POWER

                                      2,735,409
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         2,735,409
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

                                                                        [_]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         5.6%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

         OO
--------------------------------------------------------------------------------


---------------------------                          ---------------------------
CUSIP NO. 451734107                                             Page 3 of 12
---------------------------                          ---------------------------

--------------------------------------------------------------------------------
         NAME OF REPORTING PERSON
1
         General Atlantic Partners 82, L.P.
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP       (a)     [X]
                                                                (b)     [_]

--------------------------------------------------------------------------------
,3        SEC USE ONLY
,

--------------------------------------------------------------------------------
4        SOURCE OF FUNDS

         OO
--------------------------------------------------------------------------------
5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

                                                                        [_]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware
--------------------------------------------------------------------------------
                                7     SOLE VOTING POWER

                                      -0-
                                ------------------------------------------------
                                8     SHARED VOTING POWER
          NUMBER OF
           SHARES                     2,735,409
     BENEFICIALLY OWNED         ------------------------------------------------
     BY EACH REPORTING           9    SOLE DISPOSITIVE POWER
           PERSON
            WITH                      -0-
                                ------------------------------------------------
                                10    SHARED DISPOSITIVE POWER

                                      2,735,409
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         2,735,409
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

                                                                        [_]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         5.6%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

         PN
--------------------------------------------------------------------------------


---------------------------                          ---------------------------
CUSIP NO. 451734107                                             Page 4 of 12
---------------------------                          ---------------------------

--------------------------------------------------------------------------------
         NAME OF REPORTING PERSON
1
         GAP Coinvestments III, LLC
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP       (a)     [X]
                                                                (b)     [_]

--------------------------------------------------------------------------------
3        SEC USE ONLY


--------------------------------------------------------------------------------
4        SOURCE OF FUNDS

         OO
--------------------------------------------------------------------------------
5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

                                                                        [_]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware
--------------------------------------------------------------------------------
                                7     SOLE VOTING POWER

                                      -0-
                                ------------------------------------------------
                                8     SHARED VOTING POWER
          NUMBER OF
           SHARES                     2,735,409
     BENEFICIALLY OWNED         ------------------------------------------------
     BY EACH REPORTING           9    SOLE DISPOSITIVE POWER
           PERSON
            WITH                      -0-
                                ------------------------------------------------
                                10    SHARED DISPOSITIVE POWER

                                      2,735,409
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         2,735,409
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

                                                                        [_]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         5.6%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

         OO
--------------------------------------------------------------------------------


---------------------------                          ---------------------------
CUSIP NO. 451734107                                             Page 5 of 12
---------------------------                          ---------------------------

--------------------------------------------------------------------------------
         NAME OF REPORTING PERSON
1
         GAP Coinvestments IV, LLC
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP       (a)     [X]
                                                                (b)     [_]

--------------------------------------------------------------------------------
3        SEC USE ONLY


--------------------------------------------------------------------------------
4        SOURCE OF FUNDS

         OO
--------------------------------------------------------------------------------
5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

                                                                        [_]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware
--------------------------------------------------------------------------------
                                7     SOLE VOTING POWER

                                      -0-
                                ------------------------------------------------
                                8     SHARED VOTING POWER
          NUMBER OF
           SHARES                     2,735,409
     BENEFICIALLY OWNED         ------------------------------------------------
     BY EACH REPORTING           9    SOLE DISPOSITIVE POWER
           PERSON
            WITH                      -0-
                                ------------------------------------------------
                                10    SHARED DISPOSITIVE POWER

                                      2,735,409
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         2,735,409
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

                                                                        [_]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         5.6%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

         OO
--------------------------------------------------------------------------------


---------------------------                          ---------------------------
CUSIP NO. 451734107                                             Page 6 of 12
---------------------------                          ---------------------------

--------------------------------------------------------------------------------
         NAME OF REPORTING PERSON
1
         GAP-W, LLC
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP       (a)     [X]
                                                                (b)     [_]

--------------------------------------------------------------------------------
3        SEC USE ONLY


--------------------------------------------------------------------------------
4        SOURCE OF FUNDS

         OO
--------------------------------------------------------------------------------
5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

                                                                        [_]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware
--------------------------------------------------------------------------------
                                7     SOLE VOTING POWER

                                      -0-
                                ------------------------------------------------
                                8     SHARED VOTING POWER
          NUMBER OF
           SHARES                     2,735,409
     BENEFICIALLY OWNED         ------------------------------------------------
     BY EACH REPORTING           9    SOLE DISPOSITIVE POWER
           PERSON
            WITH                      -0-
                                ------------------------------------------------
                                10    SHARED DISPOSITIVE POWER

                                      2,735,409
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         2,735,409
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

                                                                        [_]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         5.6%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

         OO
--------------------------------------------------------------------------------


---------------------------                          ---------------------------
CUSIP NO. 451734107                                             Page 7 of 12
---------------------------                          ---------------------------

--------------------------------------------------------------------------------
         NAME OF REPORTING PERSON
1
         GapStar, LLC
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP       (a)     [X]
                                                                (b)     [_]

--------------------------------------------------------------------------------
3        SEC USE ONLY


--------------------------------------------------------------------------------
4        SOURCE OF FUNDS

         OO
--------------------------------------------------------------------------------
5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)

                                                                        [_]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware
--------------------------------------------------------------------------------
                                7     SOLE VOTING POWER

                                      -0-
                                ------------------------------------------------
                                8     SHARED VOTING POWER
          NUMBER OF
           SHARES                     2,735,409
     BENEFICIALLY OWNED         ------------------------------------------------
     BY EACH REPORTING           9    SOLE DISPOSITIVE POWER
           PERSON
            WITH                      -0-
                                ------------------------------------------------
                                10    SHARED DISPOSITIVE POWER

                                      2,735,409
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         2,735,409
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

                                                                        [_]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         5.6%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

         OO
--------------------------------------------------------------------------------


---------------------------                          ---------------------------
CUSIP NO. 451734107                                             Page 8 of 12
---------------------------                          ---------------------------


ITEM 1.  SECURITY AND ISSUER.

         This  Amendment  No. 3 to  Schedule  13D is filed by the  undersigned,
other than GAP-W,  LLC,  to amend the  Schedule  13D filed by the  undersigned,
other than GAP-W,  LLC,  dated November 22, 2005, as amended by Amendment No. 1
filed on October 3, 2007 and  Amendment  No. 2 filed on November 21, 2007,  and
relates to the Class A Common  Stock,  par value  $0.01 per share (the  "Common
Stock"), of IHS, Inc., a Delaware  corporation (the "Company").  This filing is
Amendment  No. 2 to the initial  Schedule  13D filing of GAP-W,  LLC,  filed on
October 3, 2007, as amended by Amendment No. 1 filed on November 21, 2007, with
regard to the Common Stock.  The address of the principal  executive  office of
the Company is 15 Inverness Way East, Englewood, CO, 80112.

ITEM 2.  IDENTITY AND BACKGROUND.

No change.

ITEM 3.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

No change.

ITEM 4.  PURPOSE OF TRANSACTION.

No change.

ITEM 5.  INTEREST IN SECURITIES OF THE ISSUER.

ITEM 5 IS HEREBY AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:

         (a)      As of the date hereof,  GA, GAP 82,  GAPCO III,  GAPCO IV and
GAP-W each own of record, no shares of Common Stock, 1,712,777 shares of Common
Stock,  186,429  shares  of Common  Stock,  31,775  shares of Common  Stock and
804,428 shares of Common Stock,  respectively,  representing  0.0%, 3.5%, 0.4%,
0.07% and 1.7% of the Company's issued and outstanding  shares of Common Stock.
In addition, GapStar


---------------------------                          ---------------------------
CUSIP NO. 451734107                                             Page 9 of 12
---------------------------                          ---------------------------


has an indirect  ownership  interest in 45,508  shares of Common  Stock held by
GAPCO  III,  representing  approximately  0.09%  of the  Company's  issued  and
outstanding shares of Common Stock.  Percentages  presented in response to this
item are based on the number of shares of Common  Stock  reported as issued and
outstanding in the Company's  Quarterly  Report on Form 10-Q filed on March 28,
2008.

         By virtue of the fact that (i) GA is the  general  partner  of GAP 82,
the sole  member of  GapStar  and the  manager  of GAP-W and (ii) the  managing
members  authorized and empowered to vote and dispose of the securities held by
GAPCO III and GAPCO IV are GA Managing Directors,  the Reporting Persons may be
deemed to share  voting  power and the power to direct the  disposition  of the
shares of Common Stock, which each owns of record. As of the date hereof,  each
of the  Reporting  Persons may be deemed to own  beneficially  an  aggregate of
2,735,409 shares of Common Stock, or 5.6% of the Common Stock.

         (b)      Each of the Reporting  Persons has the shared power to direct
the vote and the shared power to direct the disposition of the 2,735,409 shares
of Common Stock that may be deemed to be owned beneficially by each of them.

         (c)      Except for the  dispositions set forth in the table below, to
the  knowledge of the  Reporting  Persons with respect to the persons  named in
response to paragraph  (a),  none of the persons named in response to paragraph
(a) has effected any  transactions in shares of Common Stock during the past 60
days.

         (d)

   Date of Disposition     Name of Entity   Number of Shares    Price per Share
   -------------------     --------------   ----------------    ---------------
         4/21/08               GAP 82            530,743            $65.05(1)

         4/21/08             GAPCO III            50,179            $65.05(1)

         4/21/08              GAPCO IV             9,846            $65.05(1)



---------------------------                          ---------------------------
CUSIP NO. 451734107                                             Page 10 of 12
---------------------------                          ---------------------------


   Date of Disposition     Name of Entity   Number of Shares    Price per Share
   -------------------     --------------   ----------------    ---------------
         4/21/08               GAP-W             153,733            $65.05(1)

         4/21/08             GAPCO III             7,590                $0(2)
_____________
(1)  This disposition was conducted pursuant to an open market sale.
(2)  This  disposition  reflects a  distribution  of shares of Common  Stock to
     certain limited partners of GAPCO III.

         (e)      No person other than the persons  listed is known to have the
right to receive or the power to direct the receipt of dividends  from,  or the
proceeds from the sale of, any securities owned by any member of the group.

         (f)      Not Applicable.

ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIP WITH RESPECT TO
THE ISSUER.

No change.

ITEM 7.  MATERIALS TO BE FILED AS EXHIBITS.

No change.




---------------------------                          ---------------------------
CUSIP NO. 451734107                                            Page 11 of 12
---------------------------                          ---------------------------


                                   SIGNATURES

         After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true,  complete and
correct.

Dated:  April 23, 2008

                                        GENERAL ATLANTIC LLC


                                        By:  /s/ Thomas J. Murphy
                                             ---------------------------------
                                             Name:   Thomas J. Murphy
                                             Title:  Managing Director



                                        GENERAL ATLANTIC PARTNERS 82, L.P.

                                        By:  General Atlantic LLC,
                                             Its general partner


                                        By:  /s/ Thomas J. Murphy
                                             ---------------------------------
                                             Name:   Thomas J. Murphy
                                             Title:  Managing Director



                                        GAP COINVESTMENTS III, LLC


                                        By:  /s/ Thomas J. Murphy
                                             ---------------------------------
                                             Name:   Thomas J. Murphy
                                             Title:  A Managing Member




---------------------------                          ---------------------------
CUSIP NO. 451734107                                            Page 12 of 12
---------------------------                          ---------------------------



                                        GAP COINVESTMENTS IV, LLC


                                        By:  /s/ Thomas J. Murphy
                                             ---------------------------------
                                             Name:   Thomas J. Murphy
                                             Title:  A Managing Member



                                        GAP-W, LLC

                                        By:     General Atlantic LLC,
                                                Its manager


                                        By:  /s/ Thomas J. Murphy
                                             ---------------------------------
                                             Name:   Thomas J. Murphy
                                             Title:  Managing Director



                                        GAPSTAR, LLC
                                        By:  General Atlantic LLC,
                                             Its sole member


                                        By:  /s/ Thomas J. Murphy
                                             ---------------------------------
                                             Name:   Thomas J. Murphy
                                             Title:  Managing Director