Matter Network, powered by Adify, was formed by longtime tech journalists John Gartner and Michael Penwarden. Gartner, a former editor at TechTV, Wired News and Windows Magazine, has written about the social, political and economic impact of environmental technologies for such publications as the Environment News Service, MIT's Technology Review and Alternet. Penwarden, former editor of Macworld and founder/executive editor of ComputerLife, has covered technology and environmental issues for media outlets like CNN, NBC, Time and USA Today.
Matter Network publisher members include carbon offset supplier TerraPass.com.
On NSBN, SitePoint--which counts nearly 4 million monthly unique users--joins such other members as The Developer Shed Network, DaniWeb.com, OSDir.com, HowtoForge.com, ProgrammersHeaven.com, OSWeekly and MadPenguin.
NSBN, launched in May 2006 with 12 sites, says it now includes more than 65 properties, and has become the Internet's second-largest technology news property behind CNET, according to comScore Media Metrics.