Gozaic

Just-launched, DC-based Gozaic's like a TripAdvisor for historical and cultural tourism, allowing those who just can't get enough heritage to search for nearby sites/activities like "civil war museums in VA", or "urban birding in MD"; users can also view message boards about particular sites or areas of interest, build itineraries, and post online journals, e.g., "Spotted a Black-Throated Warbler in Colonial Williamsburg ...Still very lonely".