it is actually pretty sad but the truth is: there is no alternative to google adsense on the publisher side and google adwords on the advertiser side.
i am 100% sure that there will not be anyone in this forum who can prove that it is different with a showcase or screenshots.
for publishers adsense has the hightest payout compared to all other contextual adverising solutions and this payout is average 5-10 times higher compared to the #2 which is chikita, not bidvertiser.
for advertisers theres is no alternative to adwords, no matter if search or content network. you will get the most trafiic, the best quality and so the most conversions compared to others like bidvertiser.
please give me proof if i am wrong, but thats how it is!!!