I added an AuctionAds bar and I'm actually pretty pleased with this one. It links to Ebay listings and the ads focus around certain keywords I entered into my AuctionsAds account. And damn, most of the ads look like stuff I'd want to buy. If anyone is interested in adding it to their site I think clicking on 'Ads by AuctionAds' will get you to their site. And I think get me a kickback.
Oh boy, I'll be a blog mogul in no time!