This disc club is hammering to get a permanent course in San Francisco, and I think they will do it. They have a couple of unofficial courses with great information on where they are and how to play. They provide excellent links of all types. Skylands Ultimate League organizing games in the summer. South Bay Ultimate League promotes Ultimate play in the South Bay area of Northern California.
Site includes announcements and schedules.
Southern California Excellent site for regional information on tournaments. They have information on 17 courses, including fabled Oak Grove Park, the first disc golf course . This is a first-rate site with updated information. Spoonheads Boston, Massachusetts This Boston College men's Ultimate team offers panoramic photos , videos, and an animated playbook . Somebody's been working with graphics on this site.