Hacker News stories for 8 AM on Tuesday Sep 18, 2012

0.992 Functional Programming Principles in Scala starts today comments

0.804 How Ruby Borrowed a Decades Old Idea From Lisp comments

0.802 Startup Economics comments

0.727 Hey Yahoo, You’re Optimizing the Wrong Thing comments

0.500 Slashdot & SourceForge sold to Diceholdings comments

0.467 Divshot comments

0.301 What would Jack do? comments

0.267 Startup idea list comments

0.267 SourceForge & Slashdot sold to Dice for $20M comments

0.238 Twitter announces profile page changes comments

0.189 SassMe: Visualize SASS color functions in real-time without compiling comments

0.106 Dark energy camera snaps first images comments