There are a lot of Go related Internet sites out there. This table lists a few.

Site Comments
American Go Association
Australian Go Association
British Go Association
European Go Federation
Life in 19x19 Online forum for Go players
London Go Club
International Go Federation
Korean Baduk Association English pages for the Korean Baduk Association
Nihon Ki-in English pages for the Nihon Ki-in in Japan
New Zealand Go Association
Sensei's Library Collaborative website

The British Go Association run a GoTalk mailing list.