SAN FRANCISCO (Reuters) – Web search leader Google Inc. (GOOG.O: Quote, Profile, Research) on Thursday posted a surge in quarterly profit as revenue doubled, topping Wall Street expectations, and breaking the stock out of recent doldrums, sending it up 11 percent.

The company, which has expanded into e-mail and instant messaging, said it was seeing a “seachange” shift to online marketing from print and broadcast, helping it attract more big companies as advertisers, even in a seasonally slow period.

For more information on Google Q3 2005 earnings and Adsense revenue visithttp://today.reuters.com/business/newsarticle.aspx?type=ousiv&storyID=2005-10-21T012724Z_01_SCH072699_RTRIDST_0_BUSINESSPRO-GOOGLE-EARNS-DC.XML .