edrdo writes "SDF (aka Super Dimensional Fortress), the largest and oldest public access UNIX system (also a non-profit organization) has just turned 20. See the press release to get an idea of how rich the SDF story is and how hard these pioneering guys have stuck to their ideals and payed a great service to the Internet.
The SDF Public Access UNIX System Celebrates 20 Years! http://sdf.lonestar.org/
It was on June 16th, 1987 that the SDF-1 received its first caller at 300bps. This little Apple ][e BBS of the late 80s turned into a Public Access UNIX System with the demise of "killer.dallas.tx.us" during the "Operation Sundevil" raids. Since then it has grown to become the oldest and largest continually operating PUBNIX on the planet
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