Henk van Embden
- Includes images of mostly porcelain enamel advertising signs from 1875-1970.
- http://www.oudereclame.nl/en_index.htm

Country Living: Antique Advertising Signs
- Feature on the history of advertising signboards, collecting tips, antique dealers, sign reproductions, and antique advertising shows.
- http://magazines.ivillage.com/countryliving/collect/icons/articles/0,12922,284645_293985,00.html

Neon Hats
- Neon hats, neon signs, artwork, and furniture for sale
- http://www.neonhats.com/signs/index.html

National Signs of the Times Museum
- The purpose of the museum is to preserve, archive and display a historical collection of signs in their many types and forms.
- http://www.signmuseum.com/

The Lost Highway
- Individual offering for sale or trade vintage signs, petroliana, porcelain signs, other cool stuff. Includes Texaco, Coca-Cola, Pepsi, Borden, and Sunbeam.
- http://www.losthighway.net/

Sample Room Posters
- Antique advertising posters, circa 1920-30s-40s, in storage since their creation, excellent condition, for sale. Price are not shown online.
- http://www.execpc.com/~gwilli