Forgot which page you found an interesting link? Here they are again, plus some other great websites:
Gallery of over 200 pictures!
BTCV
Other Gyms
Bure Park Residents Assn
Wendlebury Woodland Project
Oxfordshire Woodland Project
Great Crested Newts
Bicester Town Council
Cherwell District Council
Oxford Nature Conservation Forum
Natural England
Woodland Trust
BBC Breathing Places
Local butterfly information & surveying
UK butterfly information
Thames Valley Environmental Records