Power Tab Users Support - join
A support group for users of Power Tab software.
Low activity, 622 members, moderated, restricted

Power Tab Developers Support - join
A support group for developers interested in Power Tab software
Low activity, 100 members, moderated, restricted

alt.guitar.tab - join
Discussions about guitar tablature music.
Low activity, 1272 subscribers, Usenet

Google Friends - join
Are you an enthusiastic Google user? Keep up-to-date with the monthly Google Friends Newsletter. Messages include important announcements of new features and other information.
Low activity, 157215 members, restricted