For wood-burning hobbyists, websites such as Champstyles Woodburning, Sawdust Connection and theWoodbox are good for viewing other artists' work and getting ideas for projects. Instructables also has tutorials for beginner wood-burning enthusiasts.
Champstyles Woodburning is the website of a single wood-burning artist. The website contains photos and information about the work as well as small custom art and jewelry pieces available for purchase.
TheWoodbox and Sawdust Connection both have information about the history and origins of wood burning, which is also called pyrography, as an art form. TheWoodbox also offers information about practical steps such as how to set up equipment and how to select the right wood for a project.