SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* SUMMIT PARTNERS LLC (Last) (First) (Middle) 222 BERKELEY STREET (Street) BOSTON MA 02116 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol WEBSIDESTORY INC [ WSSI ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner Officer (give title below) X Other (specify below) Indirect GP of 10% Owner
	3. Date of Earliest Transaction (Month/Day/Year) 10/26/2004
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/26/2004		S		368,517(1)	D	$8.5	2,102,802(2)	I	Indirect GP of 10% Owner(3)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* SUMMIT PARTNERS LLC (Last) (First) (Middle) 222 BERKELEY STREET (Street) BOSTON MA 02116 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Indirect GP of 10% Owner

1. Name and Address of Reporting Person* CHUNG PETER Y (Last) (First) (Middle) C/O SUMMIT PARTNERS 222 BERKELEY STREET, 18TH FLOOR (Street) BOSTON MA 02116 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Indirect GP of 10% Owner

1. Name and Address of Reporting Person* COLLINS SCOTT C (Last) (First) (Middle) C/O SUMMIT PARTNERS 222 BERKELEY STREET, 18TH FLOOR (Street) BOSTON MA 02116 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Indirect GP of 10% Owner

1. Name and Address of Reporting Person* MOHAN KEVIN P (Last) (First) (Middle) C/O SUMMIT PARTNERS 222 BERKELEY STREET, 18TH FLOOR (Street) BOSTON MA 02116 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Indirect GP of 10% Owner

1. Name and Address of Reporting Person* WALSH ROBERT V (Last) (First) (Middle) C/O SUMMIT PARTNERS 222 BERKELEY STREET, 18TH FLOOR (Street) BOSTON MA 02116 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Indirect GP of 10% Owner

1. Name and Address of Reporting Person* SUMMIT PARTNERS V LP (Last) (First) (Middle) 222 BERKELEY STREET (Street) BOSTON MA 02116 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) GP of 10% Owner

Explanation of Responses:

1. 278,121 shares held in the name of Summit Ventures, V, L.P.; 64,745 shares held in the name of Summit V Companion Fund, L.P.; 6,004 shares held in the name of Summit V Advisors Fund, L.P.; and 19,647 shares held in the name of Summit V Advisors Fund (QP), L.P.

2. 1,586,994 shares held in the name of Summit Ventures, V, L.P.; 369,440 shares held in the name of Summit V Companion Fund, L.P.; 34,258 shares held in the name of Summit V Advisors Fund, L.P.; and 112,110 shares held in the name of Summit V Advisors Fund (QP), L.P.

3. Each reporting person, other than Summit Partners, LLC, is a member of Summit Partners, LLC, which is the general partner of Summit Partners V, L.P., which, in turn, is the general partner of each of the entities named in Footnotes 1 & 2 above. As such, each reporting person may be deemed to beneficially own the shares of the Issuer owned directly by each of the Funds. The reporting persons disclaim beneficial ownership of such shares, and this report shall not be deemed an admission that the reporting persons are the beneficial owners of the securities for the purpose of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein.

	Summit Partners, LLC, by Martin J. Mannion, Member	10/26/2004
	Martin J. Mannion, Power of Attorney for Peter Y. Chung	10/26/2004
	Martin J. Mannion, Power of Attorney for Scott C. Collins	10/26/2004
	Martin J. Mannion, Power of Attorney for Kevin P. Mohan	10/26/2004
	Martin J. Mannion, Power of Attorney for Robert V. Walsh	10/26/2004
	Summit Partners V, L.P. by Summit Partners, LLC, Its General Partner, by Martin J. Mannion, Member	10/26/2004
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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