Usenet is dying - what next?

fotoguzzi writes: I'm not a power user, but Usenet made me feel like one. By traversing topic trees or keyword searching Google Groups, I was often delighted to learn that my wide-ranging quests had already been answered, or at least I could find an audience receptive to those questions. This seems no longer true for Usenet, and Google searches of the entire Internet do not seem to uncover similar sects. Has anyone adequately explained the fall of Usenet? Is there a new, improved way to find and communicate with scattered peoples who share a common interest?