| NBB district Friesland | www.friesbridge.nl |
| NBB (Nld. Bridgebond) | www.bridge.nl |
| NBB district Drenthe | www.nbbclubsites.nl/district/13 |
| NBB district Groningen | www.nbbclubsites.nl/district/12 |
| Mijn NBB | www.mijnnbb.nl |
| World Bridge Federation | www.worldbridge.org |
| Het digitale spelregelboekje | NBB spelregels |
| Bridgeclues | www.bridgeclues2.com |
| Better Bridge | www.betterbridge.com |
| Karen's Bridge Library | home.comcast.net/~kwbridge/ |
| Richard Pavlicek | rpbridge.net |
| Mike Lawrence | www.michaelslawrence.com |
| Bridgewinners | bridgewinners.com |
| Bridgeblog Kees Tammens | bridgenieuws.wordpress.com |
| Bridgeblog Maarten Schollaardt | echtlerenbridgen.nl |
| Bridgevaria | www.bridgevaria.nl |
| Bridgeblad IMP | www.imp-bridge.nl |
| Stepbridge | www.stepbridge.nl |
| Berry's Internet Club | www.berrywestra.nl |
| Bridgebase Online | www.bridgebase.com |
| Bridge Daily Bulletins | bridgedailybulletins.nl |
| Bridge vraagbaak | bridgevraagbaak.nl |
| Bridgeservice Rob Stravers | bridgeservice.nl |
