This looks interesting, an eBay of sorts for electronic parts -

We are happy to announce that a new section launched today on Electronics-Lab.com. It’s the new Electronics Market, where you can Sell / Buy and Trade electronics components, test equipment and other electronics stuff. You can add your item simply filling a form without the need to register. After completing the form an activation email is send. You have to click the link to activate your post. Then a visitor can contact you about your item using online form, so you will not have to publish your email.

Buy and sell electronics @ Electronics lab – Link.