Butterfly Conservation - Sussex Branch
- Profile, field trips, recent sightings and a gallery of species found in Sussex.
- http://www.sussex-butterflies.org.uk

Upper Thames Branch of Butterfly Conservation
- Dedicated to the conservation of butterflies and moths. Information about membership, conservation work, sightings, reserves, and news.
- http://upperthames-butterflies.org.uk/

Hampshire and Isle of Wight Branch of Butterfly Conservation
- Dedicated to the conservation of butterflies and moths. Information about membership, events, sightings and news.
- http://www.hantsiow-butterflies.org.uk/

Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust
- Details of organisation, volunteering, reserves, wildlife information and environmental news.
- http://www.bbowt.org.uk/

The Chiltern Society
- Details on environmental group whose mission is helping to conserve the amenities, heritage and landscape of 650 square miles of the Chiltern Hills.
- http://www.chilternsociety.org.uk/

RX Wildlife News
- Features wildlife news and events from the coast section covered by the RX fishing boat registration. Hastings, Rye and Dungeness areas.
- http://www.rxwildlife.org.uk/

Sussex Botanical Recording Society
- Studies and records the distribution of wild plants in the counties of Sussex. List of publications and membership details.
- http://www.sussexflora.org.uk/

Nightlife
- Amateur astronomy news and views in and around the Southern area of England. Details of events, their magazine, and photo gallery.
- http://www.nightlife.demon.co.uk/

CPRE Sussex
- Campaign to Protect Rural England exists to promote the beauty, tranquillity and diversity of rural England by encouraging the sustainable use of land and other natural resources in town and country. Profile, campaigns, planning advice and policies with m
- http://www.cpresussex.org.uk/

English Nature - South East Nature Reserves
- The statutory service responsible for looking after England's variety of wild plants and animals - the country's biodiversity - and its natural features.
- http://www.english-nature.org.uk/maps/region.asp?Reg=7