| Lion | Play Othello on the internet |
| Ntest | My Othello program. Windows executable + source code. |
| ODK | Connect your C++ Othello program to the GGS server in 15 minutes |
| GDK, TD | Tournament director program for GGS (and GDK kit that it needs) |
| Metaguide | Guide to othello strategy guides |
| Tournaments | Schedule of tournaments on GGS (outdated) |