Try targeting all those
99-year-olds on MySpace

Google has announced the public launch of demographic bidding to AdWords advertisers.

AdWords demographic bidding was debuted in public beta in January.

The feature helps targets ads by sex, age group or a combination of the two. Advertisers can raise bids to increase the frequency of exposure for a favored group. They can also restrict ads from target groups that do not meet ROI goals.

The feature only works on certain sites in the Google network, including MySpace and Friendster, where users provide info about themselves. AdWords receives this data in anonymous and aggregate form.

Contextual or placement targeting are supported with both CPC and CPM bidding available.