Double Shot #960

If it's Tuesday, it must be Cub Scouts.

• Say Hello to Realtime Collaboration - CSSDeck adds Etherpad-like shared editing to their HTML/CSS/JS sandbox.
• Introducing the Command Bar - GitHub turbocharges their search box.
• xgem - Supplement to rubygems to improve load times via caching.
• IonMonkey in Firefox 18 - New JavaScript JIT compiler for Firefox nightlies.
• Legit Teams - "Private git repository hosting tailored for small teams."