jwolthuis - 9:52 pm on Jan 27, 2013 (gmt 0)
Welcome to Webmaster World!
Our stores are about 996,000 pages shy of qualifying to answer your question. But maybe you can clarify...
Are you asking about "auction sites" or "big e-stores"? Two different animals, and I can count all of them on one hand. But I'm glad that the big boys are finally seeking advice on WebmasterWorld. Welcome!