In a recent interview with VentureBeat (see Q&A below), she says she considers social search to be an essential part of the leading search engine in coming years.
She hints Gmail may be used to identify your friends, using their search history to influence search results for you and those in your social network. While this network would likely first be built on Gmail contacts, Marissa wouldn’t rule out importing friends from third-party networks down the road. But it’s clear Google wants to have the user explicitly approve them.
[edited by: jatar_k at 2:03 pm (utc) on Feb. 1, 2008] [edit reason] fixed link [/edit]
It's always interesting to see what the current thinking and planning is. Somehow, this particular idea doesn't grab me. But then again, I know I'm not the usual user - none of us here are, most likely.