| DeltaCAD | (a Shareware CAD program) |
| OnlineMetals | (materials) |
| Philip Coleman | (clock plans) |
| Ralph Brendler | (clock construction) |
| Marc Tovar | (wooden clock plans) |
| Carlo Croce | (Clock Builder) |
| John Hood | (Clock Builder) |
| WR Smith | (Clock Builder, Plans, Videos) |
| Jeff Schierenbeck | (Wooden Clocks, Plans, Kits) |
| Ian Cobb | (Metals in the UK) |
| Peg-gear-clock | (Wooden clock plans) |
| Carter tools | (Taig lathes and mills) |
| Clocks Magazine | (UK Clock magazine) |
| Micro Lathe Horology | (A Yahoo! Group for constructors) |
| Bob Tascione | Excellent courses in lathe use and watch repair. |
Non-horological :
Shadle Sickle Sharpeners.