Hacker News stories for 7 PM on Thursday Jul 11, 2013

0.834 ADHD Drugs Don’t Boost Kids’ Grades, Studies Find comments

0.457 If OpenStack has won, then cloud computing has lost comments

0.335 Website not converting… any ideas? comments

0.333 Any.do Cal comments

0.084 Crowd steps up to fund ‘NSA-proof’ app comments

0.084 Ubuntu 13.10 to ship with Mir instead of X comments