SC 13G/A

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No. 1)*

Information Services Group, Inc

(Name of Issuer)

Common Stock Par Value $0.001 per share

(Title of Class of Securities)

45675Y104

(CUSIP Number)

December 31, 2009

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

     þ Rule 13d-1(b)

     o Rule 13d-1(c)

     o Rule 13d-1(d)

* 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 the disclosures provided in a prior cover page.

The information required in 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).

CUSIP No. 45675Y104  

1	NAMES OF REPORTING PERSONS Double Black Diamond Offshore Ltd.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)   o
	(b)   o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION
	Cayman Islands
		5	SOLE VOTING POWER
NUMBER OF			1,639,302
SHARES		6	SHARED VOTING POWER
BENEFICIALLY
OWNED BY
EACH		7	SOLE DISPOSITIVE POWER
REPORTING
PERSON			1,639,302
WITH:		8	SHARED DISPOSITIVE POWER
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	1,639,302
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
	o
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	5.2%
12	TYPE OF REPORTING PERSON
	CO

CUSIP No. 45675Y104 

1	NAMES OF REPORTING PERSONS Carlson Capital, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)   o
	(b)   o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION
	Delaware
		5	SOLE VOTING POWER
NUMBER OF			1,750,000
SHARES		6	SHARED VOTING POWER
BENEFICIALLY
OWNED BY
EACH		7	SOLE DISPOSITIVE POWER
REPORTING
PERSON			1,750,000
WITH:		8	SHARED DISPOSITIVE POWER
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	1,750,000
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
	o
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	5.6%
12	TYPE OF REPORTING PERSON
	PN, IA

CUSIP No. 45675Y104 

1	NAMES OF REPORTING PERSONS Asgard Investment Corp.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)   o
	(b)   o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION
	Delaware
		5	SOLE VOTING POWER
NUMBER OF			1,750,000
SHARES		6	SHARED VOTING POWER
BENEFICIALLY
OWNED BY
EACH		7	SOLE DISPOSITIVE POWER
REPORTING
PERSON			1,750,000
WITH:		8	SHARED DISPOSITIVE POWER
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	1,750,000
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
	o
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	5.6%
12	TYPE OF REPORTING PERSON
	CO

CUSIP No. 45675Y104 

1	NAMES OF REPORTING PERSONS Clint D. Carlson
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)   o
	(b)   o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION
	U.S. Citizen
		5	SOLE VOTING POWER
NUMBER OF			1,750,000
SHARES		6	SHARED VOTING POWER
BENEFICIALLY
OWNED BY
EACH		7	SOLE DISPOSITIVE POWER
REPORTING
PERSON			1,750,000
WITH:		8	SHARED DISPOSITIVE POWER
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	1,750,000
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
	o
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	5.6%
12	TYPE OF REPORTING PERSON
	IN

SCHEDULE 13G/A

This Schedule 13G (the “Schedule 13G”), relating to shares of common stock, par value $0.001 per share (“Common Stock”) of Information Services Group, Inc. (the “Issuer”), is filed with the Securities and Exchange Commission (the “Commission”).

This Schedule 13G is filed on behalf of (i) Double Black Diamond Offshore Ltd., a Cayman Islands exempted company (“DBD Offshore”), (ii) Carlson Capital, L.P. , a Delaware limited partnership (“Carlson Capital”), the investment manager to DBD Offshore and other private investment funds and managed accounts (the “Accounts”), (iii) Asgard Investment Corp., a Delaware corporation, the general partner to Carlson Capital (“Asgard”) and (iv) Mr. Clint D. Carlson, the president of Asgard (collectively, the “Reporting Persons”).

Item 1(a) Name of Issuer.

Information Services Group, Inc.

Item 1(b) Address of Issuer’s Principal Executive Offices.

Four Stamford Plaza, Suite 512
107 Elm Street
Stamford, CT 06902

Item 2(a) Name of Person Filing.

This Schedule 13G is being filed on behalf of each of the following reporting persons:

(i)	Carlson Capital, L.P.;
(ii)	Asgard Investment Corp.;
(iii)	Clint D. Carlson (“Mr. Carlson”); and
(iv)	Double Black Diamond Offshore Ltd.

Item 2(b) Address of Principal Business Office.

2100 McKinney Avenue, Suite 1600
Dallas, Texas 75201

Item 2(c) Place of Organization.

(i)	Carlson Capital, L.P. is a Delaware limited partnership.
(ii)	Asgard Investment Corp. is a Delaware corporation.
(iii)	Mr. Carlson is a United States citizen.
(iv)	Double Black Diamond Offshore Ltd. is a Cayman Islands exempted company.

Item 2(d) Title of Class of Securities.

Common Stock, par value $0.001 per share

Item 2(e) CUSIP Number.

45675Y104

Item 3 If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b), check whether the person filing is a:

(a)	o	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o)
(b)	o	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
(c)	o	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).
(d)	o	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).
(e)	þ	An investment advisor in accordance with §240.13d-1(b)(1)(ii)(E).
(f)	o	An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F).
(g)	o	A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G).
(h)	o	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813).
(i)	o	A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3).
(j)	o	Group, in accordance with §240.13d-1(b)(1)(ii)(J).

Item 4 Ownership.

(a) Mr. Carlson, Carlson Capital and Asgard (which represents the shares of Common Stock held by DBD Offshore and the Accounts) report beneficial ownership of 1,750,000 shares of Common Stock, and DBD Offshore (which represents the shares of Common Stock it holds) reports beneficial ownership of 1,639,302 shares of Common Stock. (b) Mr. Carlson, Carlson Capital and Asgard report beneficial ownership of 5.6% and DBD Offshore reports beneficial ownership of 5.2%, of the Issuer’s outstanding shares of Common Stock, which such percentages were calculated by dividing (i) the 1,750,000 shares of Common Stock owned by Mr. Carlson, Carlson Capital, Asgard, (which represents the shares of Common Stock held by DBD Offshore and the Accounts), and the 1,639,302 shares of Common Stock owned by DBD Offshore (which represents the shares of Common Stock it holds), respectively, by (ii) 31,503,115 shares of Common Stock outstanding as of October 30, 2009, as reported by the Issuer in its Form 10-Q filed with the Commission on November 6, 2009.

(c) Mr. Carlson, Carlson Capital and Asgard, for the account of DBD Offshore and each of the Accounts, has the power to vote and dispose of the aggregate 1,750,000 shares of Common Stock held by DBD Offshore and the Accounts. DBD Offshore, for its own account, has the power to vote and dispose of 1,639,302 shares of Common Stock. The filing of this statement on Schedule 13G shall not be construed as an admission that Mr. Carlson, Carlson Capital and Asgard are for the purposes of Section 13(d) or 13(g) of the Securities Exchange Act of 1934, as amended, the beneficial owner of any of the shares of Common Stock held by DBD Offshore and the Accounts. Pursuant to Rule 13d-4, Mr. Carlson, Carlson Capital and Asgard disclaim all such beneficial ownership.

Item 5 Ownership of Five Percent or Less of a Class.

Not Applicable.

Item 6 Ownership of More Than Five Percent on Behalf of Another Person.

Not Applicable.

Item 7 Identification and Classification of the Subsidiary which Acquired the Security Being Reported On by the Parent Holding Company.

Not Applicable.

Item 8 Identification and Classification of Members of the Group.

Not Applicable.

Item 9 Notice of Dissolution of Group.

Not Applicable.

Item 10 Certification.

By signing below each of the Reporting Persons certifies that, to the best of such person’s knowledge, and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

Exhibits Exhibit 1

Joint Filing Agreement by and among Double Black Diamond Offshore Ltd., Carlson Capital, L.P., Asgard Investment Corp. and Clint D. Carlson.

SIGNATURE

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.

Date: February 12, 2010

DOUBLE BLACK DIAMOND OFFSHORE LTD
By:	Carlson Capital, L.P., its investment manager
By:	Asgard Investment Corp., its general partner
By:	/s/ Clint D. Carlson
	Name:	Clint D. Carlson
	Title:	President
CARLSON CAPITAL, L.P.
By:	Asgard Investment Corp., its general partner
By:	/s/ Clint D. Carlson
	Name:	Clint D. Carlson
	Title:	President
ASGARD INVESTMENT CORP.
By:	/s/ Clint D. Carlson
	Name:	Clint D. Carlson
	Title:	President
/s/ Clint D. Carlson
Clint D. Carlson

EX-99.1

EXHIBIT 1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a Statement on Schedule 13G (including any and all amendments thereto) with respect to the Common Stock, par value $0.001 per share, of Information Services Group Inc., and further agree that this Joint Filing Agreement shall be included as an Exhibit to such joint filings.

The undersigned further agree that each party hereto is responsible for the timely filing of such Statement on Schedule 13G and any amendments thereto, and for the accuracy and completeness of the information concerning such party contained therein; provided, however, that no party is responsible for the accuracy or completeness of the information concerning any other party, unless such party knows or has reason to believe that such information is inaccurate.

This Joint Filing Agreement may be signed in counterparts with the same effect as if the signature on each counterpart were upon the same instrument.

IN WITNESS WHEREOF, the undersigned have executed this Agreement as of February 12, 2010.

DOUBLE BLACK DIAMOND OFFSHORE LTD
By:	Carlson Capital, L.P., its investment manager
By:	Asgard Investment Corp., its general partner
By:	/s/ Clint D. Carlson
	Name:	Clint D. Carlson
	Title:	President
CARLSON CAPITAL, L.P.
By:	Asgard Investment Corp., its general partner
By:	/s/ Clint D. Carlson
	Name:	Clint D. Carlson
	Title:	President
ASGARD INVESTMENT CORP.
By:	/s/ Clint D. Carlson
	Name:	Clint D. Carlson
	Title:	President
/s/ Clint D. Carlson
Clint D. Carlson