| Project | Description |
| META TUTORIALS | MetaARPA contributed and edited SDF, UNIX & INTERNET tutorials |
| SDFARC | SDF Amateur Radio Club |
| MOTD | Blogs, Forums and Galleries for UNIX hackers |
| SDF Learning | SDF Online Classroom |
| SDF PaintChat | Shi-Chan's PaintChat Server |
| COMMODE | SDF Special Interest Group Meetings |
| THXMOO | SDF Moo based on THX-1138 by George Lucas |
| SDF deskshots.org | SDF Member Desktop Screenshots |
| TWENEX.ORG | SDF Public Access TWENEX |
| TWENEX Enlistment | SDF Free Software Empowerment Bureau |
| SEVCOM Enlistment | SDF Artist Empowerment Bureau |
| ANONRADIO | SDF Underground Radio Show |
| SDF-EU.ORG | SDF European Site |
| SDF-JP.ORG | SDF Japanese Site |
| SDFCLUB.CN | SDF Chinese Site |
| SMTP NIC | SMTP Registry to stop UCE |
| ASCII-GAMES | Play and Reviews |
| Music Comp Vol I | SDF Music Compilation Volume I |
| Music Comp Vol II | SDF Music Compilation Volume II |
| Music Comp Vol III | SDF Music Compilation Volume III |
| Music Comp Vol IV | SDF Music Compilation Volume IV |
| Music Comp Vol V | SDF Music Compilation Volume V |
| SDF Mapping | SDF User World Map |
| SDF anonftp | SDF current and historical archives |
| UNIX and SDF | An excellent SDF tutorial by LISP hacker 'gms' |
| HTML and CGI | An excellent reference by MooMaster Kira |
| Computer History Museum | SDF is a contributing member of the CHM |
| NetBSD Foundation | SDF is an annual contributor to the NetBSD Foundation |
| Evan Brown | Who Owns Evan Brown's Brain? |