When Google goes and buys DoubleClick and Yahoo! responds by purchasing Right Media, what does that leave for companies like AOL? How about behavioral-targetting ad firm TACODA?

Today AOL (this blog's parent company) announced that it has entered into an agreement to acquire TACODA. AOL plans to use TACODA's targeted advertising technology to extend its own ad network. TACODA currently serves up ads for about 4,000 websites reaching over 125 million users.

Terms of the deal haven't been disclosed, but the New York Post reports that AOL could be paying from $200 to $300 million for TACODA.