Susan Bradley's recent post spurned me on to make this entry around contributing to the newsgroup. You can get detailed instructions from her blog here.
This same NNTP hosts the EBS newsgroup. Couple things I should mention :)
Ok so I made the last one up, but seriously, you should check out these newsgroups. If you're wanting to get up to speed *really* quick this is one of the surefire ways to get all the deep technical details!