comp.sys.atari.programmer - join
Programming on the Atari computer.
Low activity, 28 subscribers, Usenet

comp.sys.atari.st.tech - join
Technical discussions of Atari ST hard/software.
Low activity, 65 subscribers, Usenet

comp.sys.atari.st - join
Discussion about 16 bit Atari micros.
Low activity, 211 subscribers, Usenet

rec.games.video.atari - join
Discussion of Atari's video game systems.
Low activity, 47 subscribers, Usenet

comp.sys.atari.8bit - join
Discussion about 8 bit Atari micros.
Low activity, 263 subscribers, Usenet

comp.sys.amiga.games - join
Discussion of games for the Commodore Amiga.
Low activity, 88 subscribers, Usenet

comp.sys.amiga.marketplace - join
Where to find it, prices, etc.
Low activity, 112 subscribers, Usenet

comp.sys.amiga.misc - join
Discussions not falling in another Amiga group.
Low activity, 113 subscribers, Usenet

comp.sys.amiga.hardware - join
Amiga computer hardware, Q&A, reviews, etc.
Low activity, 164 subscribers, Usenet

comp.sys.cbm - join
Discussion about Commodore micros.
Low activity, 618 subscribers, Usenet