Richard Allan, Facebook’s director of European public policy said that “Facebook has as many users as voted for all of the three main parties in the last election - social networks will prove to be as central to political debate and the general election as the post, the phone and television have been in the past.”
Facebook’s site aims to be non-partisan, and as a result has so farposted a series of questions and links across a range of topics, from the so-called Robin Hood tax to the fact that more people on the site want lobbying scandal-hit Stephen Byers MP stripped of his privy-councillorship than would like Lord Ashcroft to repay 10 years of taxes.
The most popular politician on Facebook is currently Mayor of London Boris Johnson, who has more than 36,000 fans; of the main parties, the Conservatives has 25,094 fans to Labour’s 7,459 and the Liberal Democrats’ 7,829.
source : http://www.telegraph.co.uk/technology/facebook/7506333/General-election-campaign-begins-on-Facebook.html