One very popular event is the Reeth Rug Retreat held in Swaledale, North Yorkshire every September and organised by Heather and Cilla Cameron. Heather also offers classes in her workshop and other rug making classes can be found through your favourite search engine.
The Rug Aid web site contains a lot of information, photos and videos about the project. You'll find a Rug Aid newsletter online here and you can sign up to receive future editions.