Left Foot Forward's Shamik Das reveals that David Cameron voted No to measures that would prevent MPs invoking parliamentary privilege to avoid prosecution.
Andrew Sullivan says Sarah Palin is now hinting that she favours a full-scale war with Iran.
Political Scrapbook looks at the right-wing blogosphere, and evidence that there is someone at Conservative Central Office who monitors every single mention of David Cameron on Twitter.
4. Iran: will they, won't they? 
Channel 4's Lindsey Hilsum wonders whether Iran's ambiguity over its nuclear policy is part of a cunning plan, or a sign of chaos at the heart of the regime.
5. Petition power 
Paul Waugh blogs on pros and cons of Cameron's pledge to implement direct democracy.