This Current Report on Form 8-K is filed by Visual Sciences, Inc., a Delaware corporation formerly known as WebSideStory, Inc. (“Visual Sciences”), in connection with the matters described herein.

Item 8.01 Other Events.

     On December 5, 2007, Visual Sciences, Inc. and Omniture, Inc., a Delaware corporation (“Omniture”), issued a joint press release announcing that, in connection with Omniture’s previously announced proposed acquisition of Visual Sciences, early termination of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, has been granted by the U.S. Federal Trade Commission. A copy of the press release is furnished as Exhibit 99.1 to this report.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.		Description
99.1		Press Release issued jointly by Visual Sciences and Omniture, dated December 5, 2007.

Additional Information About the Merger and Where You Can Find It

     Omniture has filed with the SEC a preliminary Registration Statement on Form S-4, which includes a preliminary joint proxy statement/prospectus of Omniture and Visual Sciences and other relevant materials in connection with the proposed transaction. The definitive joint proxy statement/prospectus will be mailed to the stockholders of Omniture and Visual Sciences. Investors and security holders of Omniture and Visual Sciences are urged to read the definitive joint proxy statement/prospectus and the other relevant materials when they become available because they will contain important information about Omniture, Visual Sciences and the proposed transaction. The definitive joint proxy statement/prospectus and other relevant materials (when they become available), and any other documents filed by Omniture or Visual Sciences with the SEC, may be obtained free of charge at the SEC’s web site at www.sec.gov. Investors and security holders may obtain free copies of the documents filed with the SEC by Visual Sciences at vscn@marketstreetpartners.com or via telephone at (858) 546-0040. In addition, investors and security holders may obtain free copies of the documents filed with the SEC by Omniture by contacting Omniture’s Investor Relations at ir@omniture.com or via telephone at (801) 722-7037. Investors and security holders are urged to read the definitive joint proxy statement/prospectus and the other relevant materials when they become available before making any voting or investment decision with respect to the proposed transaction.

     Visual Sciences and its respective directors and executive officers may be deemed to be participants in the solicitation of proxies from the stockholders of Visual Sciences and Omniture in favor of the proposed transaction. Information about the directors and executive officers of Visual Sciences and their respective interests in the proposed transaction will be available in the definitive joint proxy statement/prospectus.

     Omniture and its respective directors and executive officers may be deemed to be participants in the solicitation of proxies from the stockholders of Omniture and Visual Sciences in favor of the proposed transaction. Information about the directors and executive officers of Omniture and their respective interests in the proposed transaction will be available in the definitive joint proxy statement/prospectus.