- BRIDGE, Institute of Oceanographic Sciences (British Mid-Ocean Ridge Initiative) is concerned with the exploration and understanding of all processes at play in the deep-sea. IOSDL is the British Institute for Oceanographic Sciences. Based at the Southampton Oceanography Centre.
- Centre for Alternative Technology promotes ideas and information on technologies which support rather than damage the environment
- Contaminated land in the UK - Information on Contaminated Land in the UK, for all working in the field, whether involved in buying, selling, assessing, advising, remediating or even just ingesting...
- EarthWatch Europe UK Field Rep Teams - Past volunteers and enthusiastic members provide first hand advice about working for the environment around the world
- Grassroots Index - A collection of information about environmental direct action in the UK and related topics.
- GreenSteve - A personal blog detailing one man's journey to become carbon neutral through changes to his lifestyle, buying habits and through carbon offsetting. Topics covered include renewable energy, recycling, wastage, green travel and more.
- London and West Middlesex National Trust Volunteers - LWMNTV is a voluntary group which performs practical enviromental conservation work for the National Trust
- New Economics Network Scotland - Bringing together individuals and organisations to integrate social, environmental and economic alternatives in Scotland.
- Rajon Institute Alternative Research into ancient civilizations and technology
- Royal Meteorological Society is the national society in the United Kingdom for all interetsed in meteorology and physical oceanography.
- ScoutNet UK - Scouting web site
- Tweed Horizons Centre - Scotland
- The Vegan Society (UK) - Promotes ways of living entirely free of animal products for the benefit of people, animals and the environment...
- Vision Of an International Charter on the Environment - Student lead initiative to committed to improving the recognition of students within the environmental field
- Welcome to FOEnet - One of the UK's leading pressure groups, campaigning on a wide range of local, national and international issues.
- World Conservation Monitoring Centre provides information services on the conservation and sustainable use of species and ecosystems, and supports others in the development of their own information management systems.