[Boatanchors] Technical-book auctions?

[Howard L Ritter, Jr]

Please excuse the bandwidth, but I have a number of fairly recent college
and professional-level texts in math, physics, and astronomy that are
surplus to my needs (and likely not to be of interest to many on these
groups) that I'd like to put up for auction. I've never auctioned anything,
but I suspect that there are better places to auction technical books than
ePay. 

Does anyone know of online auctions dedicated to the sale of technical
textbooks?

TIA,

--howard n7exn