Yahoo strikes deal with Facebook's Connect service

Yahoo and Facebook have struck a deal that will allow people to log into Yahoo's vast stable of sites using their Facebook credentials.The partnership marks a significant milestone for the Facebook Connect service, which is already used by a number of sites including CNN and Yelp.This increases Facebook's prominence as a big part of the social infrastructure of the web.Facebook is investing heavily in Connect, which allows its 350m users to log into other sites using their Facebook ID.By allowing users to log into different sites on the web, taking their network of friends with them, Facebook hopes to provide users with an identity they can use across a range of sites.