| Link | Location |
|---|
 | Peter Ryskin | Copenhagen, Denmark |
| Jarkko Rytkönen | Jyväskylä, Finland |
| Sue Ryu | New York, New York, United States |
| Anatoly Ryzhkov | Москва, Russia |
 | Denys Ryzhykh | Haarlem, Netherlands |
| Pavel Ryžov | Prague, Czech Republic |
| Kasia Rząca | Warsaw, Poland |
| Andrzej Rzepka | Lodz, Poland |
| Dariusz Rzeszotarski | Lodz, Poland |
| Emma S Mullin | Fairfield, Iowa, United States |
| Adam S | Gloucestershire, United Kingdom |
| Andrew S | Rockville Centre, New York, United States |
 | Subhan S | Yardley, Pennsylvania, United States |
| Rina Sa | Beijing, China |
| Faddy Saad | Ulm, Germany |
