This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
Comp.sys.apple2 (Csa2) is a USENET newsgroup. Messages posted to these newsgroups spread to many thousands of servers and millions of readers throughout the world. Most Internet Service Providers support posting and reading newsgroup messages via popular browsers like Netscape and Internet Explorer. A few internet sites also provide free access to newsgroups and allow posting messages. Two are Google and Mailgate. Google also allows searching for information in an archive of newsgroup messages which goes back to 1981. (For links see Q&A 001 in MAINHALL4.txt.) There are several newsgroups in the Csa2 and related families, all concerned with Apple II series affairs. They provide a forum for users to compare notes, ask questions, and share insights. comp.sys.apple2 (Csa2) - Discussion plus questions & answers relating to all Apple II computers comp.sys.apple2.comm - Communications and networking related issues comp.sys.apple2.gno - Discussion of GNO/ME, a UNIX-like multi-tasking environment for IIgs comp.sys.apple2.marketplace - Buying, selling, and promoting Apple II and related products comp.sys.apple2.programmer - Discussion relating to any aspect of programming the Apple II comp.sys.apple2.usergroups - Discussion relating to Apple II usergroups comp.binaries.apple2 - Public Domain software, shareware, and freeware for Apple II's in Text-encoded (binscii) form. comp.emulators.apple2 - The unofficial 'Apple II games stuff' newsgroup features discussions of Apple II games as well as of Apple II emulation on PC, Mac, and other platforms. comp.sources.apple2 - A newsgroup for the posting of Apple II source code alt.emulators.ibmpc.apple2 - Discussion about the use of Apple II emulation software/hardware on a PC. --David Kopper, Dan DeMaggio, David Empson, Al Kalal, Rubywand