Has Yahoo given up trying to build a legit competitor to Google Adsense? After years of trouble, it seems Yahoo is back on the acquisition path since failing to properly integrate Overture into their ad system.

Yahoo! Announces Agreement to Acquire Right Media, Largest Emerging Online Advertising Exchange:

Yahoo! Inc. (Nasdaq:YHOO - News), a leading global Web company, today announced that it has entered into a definitive agreement to acquire Right Media Inc., creator of the Right Media Exchange. The acquisition of Right Media will build upon Yahoo!’s leadership in online advertising and is a key step towards executing the Company’s long-term strategy to convert how online advertisers connect to and engage with their customers - both on and off the Yahoo! network.

Some other companies Yahoo should consider buying:
Adbrite
Quigo
Google Adsense (haha, too poor!)