With Yahoo’s announced deal to provide display and video advertising to Comcast.net, comes two blows to Google.

The first is explained by “maverick” entrepreneur Mark Cuban…

For the first time, an advertising monetization platform, such as Yahoo’s Panama, can be integrated into a NON internet video platform. When Comcast serves video from comcast.net to its own high speed data customers, those are NOT internet customers. They are private network subscribers…in short, Yahoo and Comcast can start working together to develop video content and ad platforms that Google can’t touch.

It’s also another blow to the chances that Comcast will renew their search advertising partnership with Google.

Thanks to Business Week, we get a clear explanation as to why online display advertising is all of a sudden hotter than a Willy Wonka golden ticket.

While display ads were kicked to the curb, when search advertising dared to offer targeted, relevant ads, with auction pricing – how dare they! – they’re making a comeback thanks to the same kind of targeting technology.

Ad-exchange services such as Right Media want to do to display what Google did to search. Exchanges increase the price of ads by letting advertising networks that track Web surfing behavior buy space, in front of users they recognize, on nonpremium Web pages—pages with content that an advertiser doesn’t specifically want to be associated with, such as Yahoo Mail pages. The networks can afford to pay more for these pages because they are delivering even higher priced ads thanks to their tracking information. “By allowing other publishers access to our inventory…we will ultimately achieve premium pricing from both of those elements,” said Susan Decker, Yahoo’s chief financial officer, on a conference call following the announcement.