I was about to list some of my old computer science books on eBay, but they wanted me to list them with free postage. I have asked for that in the Post Office before now, but they just laughed.
Presumably the idea is that I will include the postage in my starting price, and then eBay can charge their percentage final value fee on the postage as well as the item. Greedy.
Anyway, I have listed the books on Amazon instead. Their charges are fair, and visible when you list the item.

ebay? their terms and conditions on postage goes against the european comission rules on restrictive business practices, amazing when you a big player? is it not?