After the Spectator list about who is in the In camp, who wants the UK to leave, and who is undecided in the Conservative party, the Guardian has a list about all 650 MPs, which it is updating regularly.
The list is available at: http://www.theguardian.com/politics/ng-interactive/2016/feb/23/how-will-your-mp-vote-in-the-eu-referendum?CMP=fb_gu
