When it comes to new media, Jessica Clark blogs, “the [pubcasting] system as a whole can barely make it onto the mat. The problem is an increasingly urgent mismatch between current infrastructure investments, and those needed to keep pace with the volatile digital media ecosystem.” Clark directs the Future of Public Media project at American University’s Center for Social Media. Her entry on MediaShift draws on a recent presentation by pubcasting consultant and former Alaska Public Telecommunications veep John Proffitt (that video is included on the post). In addition to infrastructure issues, Clark writes, pubcasting needs investments to create contexts for public participation through partnerships with existing social media platforms or open-source customized tools and interface development.