Tacoda said today it plans to launch a behaviorally-targeted ad network - called Tacoda Audience Networks - geared to divvying up audiences into segments useful for branding purposes. The network will be geared for the large scale and reach necessary to be useful to the large advertisers that typically make up the brunt of brand ad spending. After using Tacoda's existing AudienceMatch network to ferret out behaviorally-matching media avails, great masses of inventory remain available for other purposes. Tacoda's chief said one of the biggest sales points of the new network will be the class of sites involved in the media network. "With existing 'blind' ad networks, advertisers' messages may be run on any type of web site, potentially damaging a brand's image." The network plans to have built up an aggregated reach of 49 million individuals by the slated April launch. Tacoda hopes to build that audience to 85 million people, or about 60 percent of the U.S. monthly internet audience.