I'm trying to organise selling some of my customs over eBay. It's the first time I've sold things there, so it's a little daunting and complicated for me.
There is a group called C.A.S.E. (Customiser Auction Sales on eBay)
This seems to be a group of custom auctioners who link to each other's auctions and promote each other. It seems like a good way to see what's out there and to increase traffic to auctions.
To join, I'll need to get an auction up and running then give them an email.
Update: I've made it into C.A.S.E. and there's a link to their page at the bottom of this blog.