Some links you might find useful:
Norfolk:
GYBC recent sightings http://www.gybc.org.uk/year/recent.html
Top bloke, top site http://www.uea.ac.uk/~e039/ilyabirding.htm - get the gen on what you might be seeing...
Chris Mills, http://www.norfolkbirding.com/ my birding mate from Ancient Murrelet days. Amazing Pix.
James Appleton's site - http://happisburghparishbirding.blogspot.com/ a good bet for a decent rare this spring!
The Winterton Spotters' Collective http://www.birdwatch.plus.com/ - hopefully the comrades rarity production will be up this year!
Other interesting blog sites:
He knows his music, his birds and he writes a good sentence http://bitterbonxie.wordpress.com/2008/03/
Doctor Martin's escape from academia http://proregulus.blogspot.com/
Apart from the heavy metal fixation, he's the business http://www.skills-bills.co.uk/home.htm
The original and the best: Punkbirder http://www.freewebs.com/punkbirder/
UK:
BOU http://www.bou.org.uk/ get the latest BOU list and decisions etc
British Birds http://www.britishbirds.co.uk/ - still the best by a county mile
BBRC http://www.bbrc.org.uk/ -
Bird Forum http://www.birdforum.net/ - for IBWO idiocy and to hear what everyone has twitched in Norfolk
Global
OBC http://www.orientalbirdclub.org/ A fantastic group of very dedicated people
OBC images http://www.orientalbirdimages.org/ - Fire-tailed Myzornis. Need I say more?
BirdLife http://www.birdlife.org/
NBC http://www.neotropicalbirdclub.org/
ABC http://www.africanbirdclub.org/
OSME http://www.osme.org/
Surfbirds http://www.surfbirds.com/
Surfbirds Forum http://www.surfbirds.com/forum A better class of discussion!
Dutch Birding http://www.dutchbirding.nl/
ID Frontiers http://listserv.arizona.edu/archives/birdwg01.html
World Bird Names http://www.worldbirdnames.org/index.html
BirdsKorea http://www.birdskorea.org/
Another top bloke and top site http://josstratford.co.uk/ Mr Steller's Eider...
Weather:
East of England Weather http://www.metoffice.gov.uk/weather/uk/ee/norwich_forecast_uv.html
Europe Pressure Charts http://www.metoffice.gov.uk/weather/europe/surface_pressure.html
Brush up your weather knowledge here http://www.bbc.co.uk/weather/features/understanding/