Alexa Internet was founded in 1996 by Brewster Kahle and Bruce Gilliat. Alexa is a web information company which provides information about websites including Top Sites, Internet Traffic Stats and Metrics, Related Links, Online Reviews Contact Information etc. of all websites. In 1999, Alexa was acquired by Amazon.com for about $250 million. Alexa began a partnership with Google in spring 2002. In September 2006, Alexa began using their own Search Platform. In December 2006, they released Alexa Image Search. With the help of Alexa you can get a brief review of any website. You can get information about any website where it stands in the world of internet. Alexa generate information about any website with the help of alexa toolbar. The Alexa toolbar is regarded by many vendors, such as Symantec and McAfee, as spyware. Symantec classifies the toolbar as trackware. McAfee classifies it as Adware.