Where to Sell your ebook rights?

Ok, I've written an ebook about acne quite some time ago.

What's a good place to sell my ebook?

ALSO, I am giving this ebook away for "free" provided that customers do some CPA offers. So will that affect me selling my ebook away?


EDIT:
nvm, I've decided to give it away "free".

Interesting question anyway though- where is a good place to sell an ebook?

If your giving away your ebook for free you should consider joining Google groups and free ebook directories.