Hours ago, David Heinemeier Hansson announced informally on Twitter:

Most Ruby developers should be familiar with Rack, an interface / library that abstracts away a lot of the banalities of hooking up application code to HTTP servers. It's used by several Ruby Web application frameworks already, some as a default - such as Merb, and others as an optional extra - such as Rails. Rack is significant because it provides a standard for Web-facing Ruby applications and frameworks to adhere to and is rapidly becoming the de-facto standard in this space.

RubyFlow - the community based companion site to Ruby Inside - has been on fire! I'm finding out about lots of new stuff on there that then gets included into Ruby Inside posts. It's the place to be if you want the most up to date Ruby and Rails news, but don't mind putting up with a bit of 'noise'.

It's time to thank Ruby Inside's excellent sponsors once again.