Microsoft's Bing search engine has begun showing US users which sites and products their Facebook friends like.
The move is an attempt to make web search results more personal.
It is part of a four-year alliance between the two companies and marks another step in Microsoft's attempt to displace market leader Google.
The function is optional and only works when users are logged into Facebook or have "cookies" on their PC that store Facebook data.
"This is just the beginning; there is going to be a whole lot more to come over time," Facebook founder Mark Zuckerberg said at the launch.
Thursday, 14 October 2010
BBC News - Microsoft's Bing deepens ties with Facebook