Most decent sized chans have their /prog/ board. See shii's Overchan[1] for a comprehensive list of chans on the WWW.

Shii personally runs a pretty nice chan called 4-ch[2] with a large and decent DQN[3] textboard. (S)he founded this chan after being banned from 4chan and SomethingAwful. I don't know whether shii still frequents 2ch or Futaba.

I don't consider the English chans online for programming to be all that great. Most (if not all) are textboards with few postings and lots of trolling over the last 3 years. I don't know the state of the huge Japanese ones however, as I do not frequent them or read the language.

[1] http://shii.org/2ch/

[2] http://4-ch.net/4ch

[3] 4-ch.net/dqn/

Squeeks runs 4-ch, not shii.

edit:

also, shii doesn't run overchan either--Mohey Pori does

from what I remember, someone DDoS'd it in their war against all imageboards (can't remember who) and shii ended up hosting it

Have you read your SICP today? You'll fit right in if you have.

So long as you're an EXPERT PROGRAMMER who despises programming SEPPLES.