Historically, the CCC was a loose organization of crafters, made for mutual benefit and improving what players can get out of the crafting system, welcoming pretty much everyone that cared to join and offering various networking, advertising, and trading services to work around missing functionality on the mudside code for crafting. Since then, we have been happy to find that said missing functionality has eventually been implemented, woo! Well, except a WTB shop, but we weren't primarily trying to work around that particular one.
Thanks to these various improvements, the membership rolls, previously posted here, are no longer needed, and the volunteer services can be combined into the C-Trade page. Please go there to post or look for offers to buy, to sell, or to volunteer services related to crafting, especially if they are things that don't fit nicely into the mudside mechanics.