VIG Network Inc. launched Monday three sponsored b-to-b e-mail newsletters, each aimed at a specific vertical industry group, or VIG. Red Herring Communications Inc., for example, sponsors the permission-based, opt-in ``Adtalk'' newsletter, which includes original editorial and content from AdWeek and other publications. The content can also be found at www.adtalk.com. Similarly, broadbandupdate.com is a newsletter sponsored by Crest Communications Holding L.L.P., and e-commercenews.com is sponsored by Contact Networks. The company has plans to launch scores of these custom content newsletters by the end of the year. VIG Network, New York, launched a print advertising campaign promoting the newsletters in the May issue of Red Herring. The campaign was created by Swirl, San Francisco. VIG Networks is headed by former Time Inc. executive Rebecca Darwin and veteran public relations executive Andy Plesser.