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

Item 8.01. Other Events.

     On November 17, 2006, Jeffrey W. Lunsford, a current member of the Company’s board of directors and the outgoing CEO and President of the Company, advised the Company that he entered into a trading plan intended to qualify for the safe harbor under Rule 10b5-1 under the Securities Exchange Act of 1934, as amended. Under the trading plan, Mr. Lunsford authorized the sale of up to an aggregate of 250,000 shares of the Company’s common stock, which represents approximately 36% of the 686,732 shares of the Company’s common stock currently owned by Mr. Lunsford. Mr. Lunsford has advised the Company that he entered into the trading plan to help alleviate certain liabilities for taxes triggered primarily as a result of the vesting of a warrant previously issued to Mr. Lunsford by the Company.

     The trading plan provides for sales of the Company’s common stock in amounts that vary depending on the available price per share. Under the trading plan, no sales will occur until February 14, 2007 and the trading plan will continue until the earlier of December 31, 2008 or the sale of all 250,000 shares of the Company’s common stock.