- An effort to explore the aesthetic and artistic elements of bonsai, including technical composition, presentation, display and other ways in which bonsai impacts the human eye and soul.
- Portal features calendar, discussion boards, chat, a search engine, as well as links to related sites. Also offers articles and advice on specialized techniques.
- Professional bonsai artist in the USA. Publication list, collection gallery with descriptions, illustrated articles, works in progress, biography and engagement dates.
- Housed at the Arnold Arboretum of Harvard University. An illustrated history of the collection, its founder, the principal type of Hinoki in the collection, and the general care given to the trees at the current time.
- Program at the U.S. National Arboretum features image galleries and information on collections located in the United states and abroad. Also offers contact information for the group's board of directors and newsletter.
- Has the sole purpose of presenting and recording the slow transition of nursery stock and pre-bonsai material into developed bonsai. All trees styled by Paul Pikel.
- Centered on Qingquan Zhao's book, Penjing: Worlds of Wonderment. Background information, photo galleries, and magazine articles, as well as online book sales.