This table contains links to websites I find useful. In amongst them are sites of forums, databases, picture galleries, opportunities for travel and pure photography blogs. Hope you find them useful too.
SNAPP guide

Connecting photographers with incredible locations. Smart destination guides for photographers

Luka Esenko

Landscape and travel photographer from Slovenia.
Bird Forum

Bird forum

Bird forum is a web database for images, equipment review, and travel information.
Sincerely recommended!
WANDWildlife And Nature Destinations directory

Fatbirder : The most comprehensive birding resource on the web!

WAND : THE place to start your search for wildlife tour companies, guides and accommodation
Bird Sites - A human edited birds Web Directory.
Active Search ResultsActive Search Results (ASR) is an independent
Internet Search Engine using a proprietary page ranking technology with Millions of popular Web sites indexed