Ok a bit of a pretentious title I know, but I think its an idea for all of us, and I have a suggestion also for the Ebid admins (that may be of interest to Ebid users who have thier own websites as well)
First of all, I think there could potentially be a lot more use made of the social networking groups. Not in a spamming manner, but in the creation of Ebid discussion groups. That way discussion is active among Ebid users, and friends get to see the discussions and maybe are thence inspired to use Ebid.
I know theres a Facebook group for UK Ebid users, which I joined, but none showed up for Stateside. Facebooks good because you can invite your facebook friends directly to the group. (my entire friends list got invited, hehe)
I spend time on Livejournal, so I started up an unofficial ebid discussion/ auction posting community on there. But of course there are loads of other sites - myspace, dreamwidth, bebo, vox, wordpress, blogspot, Yahoo groups, the list goes on and on, and if people who use those sites a lot could get discussion groups about Ebid going, or even the admins of Ebid themselves start groups, then I think that could raise the profile a lot.
There are also other ways of site promotion, and for the amdram group I am publicity officer for, I have found Webring.org a good place to promote sites as well, though Webring-ing Ebid would of course be a job for the site admins. Thats not to say that people with a personal website that links to thier ebid auctions might not be able to use it the same way.
Hope you dont mind the suggestions - I would do them if I had the hours in the day, but since I dont, the next best thing is to make the suggestions. After all even if we all do a bit each, the word could spread really well.