- Adromischus Displayed
 - Provides horticultural reference information for the genus of succulent plants from southern Africa. - Amateur's Digest, The
- Bi-monthly publication for lovers of cactus, other succulents and caudiciforms; site includes sections on plant/seed suppliers, books for sale and information sharing.
- Backyard Jungle: The Ultimate Epiphyllum Site
- Discusses growing requirements and health, as well as offering photo galleries and a forum.
- Brazilian Cacti Project
- Dedicated to the popularization and conservation of the Cactus family (Cactaceae) that occurs in Brazil.
- Cacti and Computer
- Features links to cactus and succulent-related sites, societies, and sources of interest.
- Cactus and Succulent Plant Mall (CSPM)
- Resource for all growers of cacti and succulent plants.
- Claret Cup - Echinocereus triglochidiatus
- Discussion and images.
- Gasteria Reference Collection in North America
- Provides an introduction to the South African succulent genus, descriptions of all its species, photos, cultivation tips, links, and more.
- Kaktus Austria
- Austrian cactus page.
- Lithops: An Introduction
- Investigates the plants, often known as "living stones," that belong to the plant family Mesembryanthemaceae (Aizoaceae).
- Living Stones, The
- A discussion of Lithops, or flowering stones, as well as images. These plants mimic their natural surroundings to an astounding degree.
- Mammillarias.net
- Provides a description of the flowering cactus genus, discussion forums in English and in French, a field collection number list, and a picture gallery.
 Succulent Plant Page
- Resource for those interested in collecting, growing, propagating, showing, and the conservation of succulent plants.- Suite101.com: Cacti and Succulents
- Offers articles, discussions, and resources.
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