1. Ten weeks to London's election: where Ken needs to improve

Ken needs to reassure Labour supporters that he can deliver on his promises, says Leo Barasi at Liberal Conspiracy.

2. Where have all the women gone?

Jon Snow bemoans the fact that the media remains anachronistically male dominated.

3. Euro Agonistes

Paul Krugman discusses the agonising position of Europe's troubled peripheral economies.

4. Grayling hits back in Tesco row

In an exclusive, Paul Waugh shares an open letter from Chris Grayling to Polly Toynbee, rebutting her criticism of workfare.

5. I hate to say I told you so: speed of light is still unbroken

The Telegraph's Tom Chivers blogs on the disproved finding that neutrinos are faster than the speed of light.