Well I actually use commission junction and signed up to the ebay affiliate program to earn money. Every time someone makes a bid on something through my site I earn 10p. So far I've earnt £32 (about $50 I guess) during the 14 days this has been up.
I thought about putting adsense on it, but I like the 'clean' look of the site... I think people like sites with no ads and not many people recognise they're going through an affiliate link before reaching ebay. Do you think I should put some google ads on too?