I used bidvertiser, but the customisation of the ads are annoying and didn't even work for me, so I moved to clicksor, they're better in my opinion
^ but clicksor have just increased their paypal payout to $50 as they know it will take years for their publishers to reach that with millions of clicks. Bidvertiser = $10 paypal theres alot of other smaller advertising programs who will payout via paypal too
I use Bidvertiser For adds i think they are the best payout is good i dont mind having ebay ads on my site specially the site i am running helps me alot