Hacker News stories for 3 AM on Monday Jul 22, 2013

0.533 (Haskell) Lenses In Picture comments

0.410 David Cameron’s default on will actually be opt-in comments

0.307 MultiLevel: Expose a levelDB over the network, to be used by multiple processes comments

0.098 10 questions about Cameron’s ‘new’ porn-blocking comments

0.036 New Py articles website. Do I suck at this? comments