Discworld.com
Discworld.com is a website founded in 1995 by Sandra and Jo Kidby. Formerly known as PJSM Prints the website primarily focuses on selling items and books related to Terry Pratchett's works.
The website originally focused on selling prints produced by Paul Kidby but later expanded into selling books and other Discworld related items, similar to the Discworld Emporium that also sells official Terry Pratchett merchandise. This website differs from the Emporium as the main focus of Bernard Pearson's shop is the 'Discworld Ephemera' that it produces; whereas Discworld.com focuses more on art prints and books that are embossed with Sir Terry's coat of arms and/or signed. Also Discworld.com does not have a physical store unlike the Discworld Emporium.
cmotdibbler.com
This website was originally set up by Stephen Briggs and predated Discworld.com, however the website had to close after several years of trading. However some of the merchandise is still available and sold on Discworld.com.