Friday June 3 through Sunday June 6, 2011, Blackbeard Festival in Hampton VA.
Friday August 12 & Saturday 13, 2011, Beaufort Pirate Invasion
Friday August 5 through Sunday August 7, 20 11, Pirate Weekend, Bald Headed Island, NC
I know that both the Maryland and the Pennsylvania Renaissance Festivals have pirate weekends but I have never been to either.
There is also a fundraiser event for the Kalmar Nyckel where they will need pirates sometime in July also but the details are still a little sketchy. I believe it is a one day event but I have no idea where. Keep an eye out for postings.