Harvest Sock Swap 07 , and has a knitting twist that I have not seen before. Sign ups will close on September 18th.
Hogwarts Sock Kit Swap does not involve sock knitting but putting together a sock kit (yarn, needles pattern) in Hogwarts house colours. Your crafty contribution is the House Bag, which can either be knitted or sewn in choosen house colours. Sign ups will close on August 29th.
If you are a Monkey Sock Knitter, or are thinking of joining the thousands who are there is even a Swap for you, but sign up fast it closes on August 31.
If these aren't up your alley check out Knit-Alongs and Swaps for existing and upcoming events.