There is more than one listing site

Terracaching
Opencaching
Navicache
Geocaching

others ?

there are some others and private lists out there (honest) who has contact and is a regular looker/ user on these and how do we go about getting them to recognise the GAGB.

Ill partially answer for terracaching, we could edit their wiki ? ensure as many UK cachers are sponsored by gagb members as possible to ensure a more robust review process that an USA based reviewer