Click on the underlined links to display the site in a new window.
| EBU | English Bridge Union |
| EBED | English Bridge Education & Development |
| EBU Shop | English Bridge Union Shop |
| CCBA | Cornwall Contract Bridge Association |
| SBU | Scottish Bridge Union |
| WBU | Welsh Bridge Union |
| WBF | World Bridge Federation |
| Ecats | Sim Pairs Results on this site |
| MSO | Mind Sports Worldwide |
| Bridge Base | The largest bridge website |