2001. , SDF was composed of 47,572 users from around the world. SDF users include engineers, computer programmers, students, artists and professionals. SDF.org is a development site for NetBSD, and in 2018, SDF was the largest NetBSD installation in the world. References Further reading External links @sdf_pubnix on twitter Interview with Stephen Jones at bsdtalk (MP3) 2012 Feature Story on NPR, "In Noisy Digital Era, 'Elegant' Internet Still Thrives" BBS: The Documentary at the Internet Archive NetBSD Project Web Site BBS networks Shell account providers Unix shells