The Traditional Paint Forum
- A non-profit group with an interest in historic decorative schemes, which publishes the journal "Traditional Paint News" (contents listed online). Annual conference, membership, news.
- http://www.traditionalpaintforum.org.uk/

Stone Roofing Association
- Provides an introduction to sandstone and limestone roofs, giving the geology, history and use of stone slates, with bibliography and glossary.
- http://www.stoneroof.org.uk

Roman Concrete
- David Moore's writings and references on Roman and modern concrete technology and construction.
- http://www.romanconcrete.com/

Roofing Tiles
- The TileMan presents six illustrated articles by Colonel Charles McGee from The Journeyman Roofer and Waterproofer (1947-50) explaining the design, manufacture and installation of clay roofing tile.
- http://www.preservationweb.com/ads/tiledocs.html

Timeline of Concrete
- The story of concrete from the natural deposit of cement compounds 12,000,000 BC, through the creation of concrete by the Romans to its uses in the 1990s. Short bibliography.
- http://www.duc.auburn.edu/academic/architecture/bsc/classes/bsc314/timeline/timeline.htm

Rick's Bricks
- A compilation of documents covering the history of brick-making and brick-building, particularly in Somerset County, Pennsylvania, US. Includes a bibliography.
- http://www.shol.com/agita/

Azulejos de Lisboa
- Colin Manning gives a photographic tour of some of the Portuguese tiles, known as azulejos, which adorn the inside and outside of almost every home in Portugal.
- http://www.newmediarepublic.com/azulejos/

Tiles and Architectural Ceramics Society
- This UK society provides a beginner's guide to the history of tiles used pave floors or decorate walls.
- http://www.tilesoc.org.uk/

History of Plumbing
- A series of articles from Plumbing and Mechanical magazine following the development of plumbing from ancient Babylon to modern America, hosted by theplumber.com
- http://www.theplumber.com/H_index.html