GNC.com: "The days of a Web presence being an optional component for agencies are long gone. For most citizens, the primary way of interacting with their government is through Web sites. By and large, agencies have responded to that demand by creating richer, more interactive sites. A lot has changed since Government Computer News created its first list of 10 great government Web sites last year. For one thing, social networking has moved into the mainstream, and to maintain a presence in the communities they serve, the smartest agencies have established footholds on Twitter, Facebook and other such sites." Here is the latest: Great .Gov Web Sites 10 sites that take online government to the next level."