We sure do!
http://www.rcuniverse.com/market/sell-1.cfm
Out of curiosity, what are you looking for? The site's rules have changed somewhat as some things can be asked about, mostly things that are no longer on the market or hard to find. If you know your way around this site's rules, there are ways to ask for things. OK, I'm going to give away a little secret here so don't anybody else look, OK? Having been a Mod in here for just a hair under 4 years the idea is to ask if anyone knows where to get a (item)?
Now, for the other part. In public, anyone that happens to have one that they can unload should do it through a PM or e-mail. It's best for that person not to post something like "You've got a PM", he'll know.