As you may have heard this week, both Facebook and MySpace launched their new ad networks.

MySpace is all about hypertargeting, and Facebook builds on hypertargeting with the addition of letting members "fan" (not friend) brand via their brand pages.

Jeremiah Owyang does an excellent job (as usual) of making sense of all of this:

"Both Facebook and MySpace have launched profile and network targeted advertising and marketing products. As they both use member interests and the communities which they are part of, trust continues to become key in adoption as information is passed along the network. The sheer size of MySpace’s member base, as well as the thriving local business membership will lead to success. Facebook, which brings a unique solution evolves advertisements to endorsements and encourages members to subscribe to a brand in what we are calling “Fan-Sumers” (an evolution of the consumer). As consumers share their affinities, brands can advertise using trusted social relationships."

Read Jeremiah's full post here:
MySpace and Facebook launch new Advertising products, why Hyper Targeting, Social Ads and rise of the “Fan-Sumer” matter to brands

This is sure to be a topic of discussion at the Marketing & Online Communities conference tomorrow.