In the past few years, it has closed down under-performing and non-core sites like social bookmarking service Delicious, search engine AltaVista, online news aggregator Buzz, and social network MyBlogLog.

FORBES: Don't Expect Display Ad Decline To Last Forever At Yahoo!

It says sponsorship is subject to a 1% limit of the force's total annual income, and the acceptance of sponsorship for non-core police activities is intended to extend and enhance the force's service to the community.

BBC: Met Police got ?22.7m from sponsors, FOI request finds