unix utilities discussion--where?

Hi! This question probably doesn't really fit in anywhere on this forum, but I didn't know where else to ask. Where could I go to find or have an in depth discussion of the classical, canonical (and the newer) Unix utilities? I mean, like, every single one of them--you know sed, grep, yes, tr, comm, wc, uniq, etc. I'm kind of half-way familiar with many of them, but I'm far from knowledgeable on all of them. It would be nice to chat with some people that are far more experienced in both the usage of and history of the classic (and newer) Unix programs. Thanks. -- Furry cows moo and decompress.