Midland Wind and Water Mills Group
- A voluntary, non-profit making society of mill enthusiasts in the Midland counties of England. Activities, publications, membership. List of mills in the Midlands area open to the public, with links.
- http://www.midlandmills.org.uk/

The Roughwood Mill Album
- Photographs and postcards of English windmills and watermills, taken or collected by Mark Collins.
- http://www.roughwood.net/WindmillAlbum/WindmillFrames.htm

The Mills Archive
- Mills Archive Trust, an educational charity, shares records and history relating to traditional mills and milling. It contains many thousands of digital images and documents as well as extensive databases of information.
- http://www.millarchive.com/

University of Kent: Wind and Watermills Collections
- The collections include around 4,000 photographs of windmills in Great Britain, photographed by Donald Muggeridge 1930s-1960s. Online catalogue by English and Welsh counties, with some images. Also the C.P. Davies Collection, which centres on Kent and Su
- http://library.kent.ac.uk/library/special/html/specoll/windmill.htm

Sussex Mills Group
- Promotes the study, maintenance and history of traditional windmills and watermills in Sussex. Includes lists of mills with locations, photographs, events and news.
- http://www.sussexmillsgroup.org.uk

The Mills Research Group
- A voluntary society which aims to encourage and conduct research into the traditional use of wind, water and animal power in the UK. Aims, conferences, publications.
- http://www.millsresearch.org.uk/

SPAB Mills Section
- The UK's national organisation for anyone interested in the preservation of windmills and watermills. Part of the Society for the Protection of Ancient Buildings.
- http://www.spab.org.uk/mills/