OnTrent
- A major partnership project to benefit wildlife and people in parishes along the Trent Valley.
- http://www.ontrent.org.uk/

Thorne and District Windfarms Action Group (TDWAG)
- Opposes the development of windfarms around Thorne Moors, and Tween Bridge.
- http://www.tdwag.org.uk/

Lincolnshire Wildlife Trust
- Cares for land between the Humber and the Wash, and aims to protect the countryside and encourage education and research. Includes a map of nature reserves, factsheets, news, events, and information about becoming a member.
- http://www.lincstrust.org.uk/

Reserves in Lincolnshire
- A comprehensive guide to the Lincolnshire Wildlife Trust's nature reserves. Descriptions of reserve location and management with reserve maps.
- http://www.lincstrust.org.uk/reserves/index.php

Flixborough Anglo-Saxon Settlement
- An illustrated description from Hull City Council of the excavation by Humber Archaeology (1989-1991) of an exceptionally wealthy Anglo-Saxon site. Images of fine objects.
- http://www.hullcc.gov.uk/archaeology/flixboro.htm

Lincolnshire Wolds Countryside Service
- Volunteering opportunities and conservation advice for farmers in the Wolds.
- http://www.lincswolds.org.uk/

The Lincolnshire Naturalists' Union
- Amateur natural history society covering the whole of Lincolnshire. Details of society and events.
- http://www.lnu.org/