I have started a group on Yahoo, for people to sell their beads.
This can be beads or bead-related items (i.e. tools, books, website space). Just make it relevant (no, Kaytee, *no* Tom Cruise tapes or dvd's, or laser discs!).
It's just a group of 30 people, but I have the archives open to the general public, so more people may be watching for the announcements!
So you can post auctions, websites, or ads. You can post "formal" ads (i.e. Nicole's Bali, or Tink's beads), or more informal (i.e. if I had 1/2 strand of beads left, or some beads that I knew that I would never use). Also, you can post ISO's (in search of) for items that you are looking for.