Hacker News stories for 4 AM on Tuesday Jan 22, 2013

0.708 One fundamental difference between ElasticSearch and Solr comments

0.391 Inside the Investors Mind - Infographic comments

0.195 Former Microsoft executive says Ballmer culls internal rivals to retain power comments

0.097 Specifications of the Firefox OS Developer Preview Devices comments

0.071 Firefox OS Developer Preview Devices Announced comments