I belong to a few backpacking groups through Meetup.com in NVa. One is MidAtlantic Backpackers, the other is the South Central PA Backpackers.
I'm an asst. organizer in both, so I organize trips, usually the longer (30-40 miles over 2-3 days) trips. Within the last month and a half I've done Dolly Sods, WV; Black Forest Trail, PA; Allegheny Front Trail, PA; a bit of the AT around Caledonia State Park, PA, and Old Loggers Path, PA. Have another trip slated (someone else's) for the weekend after Thanksgiving. Will be putting more trips together throughout the winter.
So you might want to check out those two groups.