Glastonbury Festival
Official site, contains news, festival information, line-up, pictures, tickets and previous festival information.

Scarlet Mist
A free ticket exchange service for festival goers.

Glastonbury Forum
Independent discussion forum.

EFestivals.co.uk: Glastonbury Festival
Contains news, line-up information, rumours, ticket information, photo galleries, archives of previous festivals, and a forum.