Activision, Inc.’s Guitar Hero III: Legends of Rock and Call of Duty 4: Modern Warfare have been the most searched for video games on the Web, leading all U.S. Internet searches since Oct. 28, 2007 according to Hitwise, a leading online intelligence service. During the same period, Guitar Hero III: Legends of Rock was the only video game listed among the top 500 search terms across all categories of web sites.

“Consumer interest in Guitar Hero III: Legends of Rock and Call of Duty 4: Modern Warfare has been incredible and places Activision in a strong position heading into the holiday season,” said Robin Kaminsky, executive vice president of Activision Publishing. “Guitar Hero III: Legends of Rock sold through more than $115 million within the first seven days of its launch and we fully expect Call of Duty 4: Modern Warfare will be one of the top-selling games of the year.”

Developed by Neversoft, Guitar Hero III: Legends of Rock is on store shelves now for the Xbox 360 and PS3 (SRP $99.99) and the Wii and PS2 (SRP $89.99) and is rated T for Teen by the ESRB.

Developed by Infinity Ward, Call of Duty 4: Modern Warfare is rated “M” (Mature) by the ESRB for Intense Violence, Strong Language, Blood and Gore and is available now on Xbox 360 and PLAYSTATION 3 computer entertainment system for a suggested retail price of $59.99; the Windows PC version for $49.99. Also available for Nintendo DS, developed by n-Space, the title is rated “T” (Teen) for Blood and Violence and carries a suggested retail price of $29.99.