Here are some useful links that will take you to other bird related websites.
Not only are there sites dedicated to certain species of birds, but also useful sites in the world of aviculture.
 

A great forum for meeting and communicating with other bird keeping folk.

The home of the Gouldian Finch Society

A useful site for those of you who keep and breed British hardbills and softbills.

Stu's Animal Housing is based in Cradley Heath, West Midlands. They manufacture aviaries and flights.

A site dedicated to keeping and breeding African Waxbills.

Shropshire based Parrot specialists.

Specialist manufacturer of breeding cages and nest boxes.

National Bengalese Fanciers Association

Brian Hyland manufactures high quality punch bar cage fronts.

 Great Belgian Website that has links to almost every type of bird you would ever wish to keep

Versele-Laga supply a comprehensive range of bird nutrition.

Website of the British Bird Council (BBC).

Probably the best place to get your closed and split rings.

Website of the Australian Finch Society UK.

AK Gouldians
Warwickshire breeders site dedicated to the beautiful Gouldian from Oz.  

West Hagley Aviaries.
Suppliers of bird's, and aviary panels. Based in the West Midlands.

Grantham Bird Society
 

Allandoo Pheasantry
Breeders of Ornamental Pheasants in South West Scotland
 

Barbi's Bird House in Washington
State, USA.
Specialists in hand reared parrots
and finches....inc javas!

Domokos Gyula - Waxbill Breeder from Hungary.