The Friends of Pefkos Forum has about 600 members is a great place to ask questions about Pefkos. This site replaces the former MSN group about Pefkos.
The Mates of Matina forums have nearly 200 members. Whilst as the name suggests, the Mates of Matina is a fan site of the Matina hotel, the members know Pefkos inside out and there's some great Pefkos pictures and restaurant reviews.