Cacti and Succulent Discussion Group
- Yahoo web/email group dedicated to discussing the cultivation of cacti and other succulent plants.
- http://tech.groups.yahoo.com/group/Cacti_and_Succulents/

Sempervivophilia
- Dedicated to houseleeks in the genus sempervivum and its subgenus jovibarba, with lists of species and cultivars, photos, bibliography, and information about distribution. Multilingual site.
- http://sempervivophilia.stalikez.info/

Stansfields: Cacti
- Two galleries of photos from a personal collection, mostly of plants in bloom.
- http://www.stansfields.org/cacti.htm

Au Cactus Francophone
- English index of this multilingual cactus Web site.
- http://www.cactuspro.com/index_eng.html

Cactusbase
- Provides agallery of paintings and cactus by Zvone Rovsek.
- http://www.astrokaktus.com/CactusBase/

Kaktos
- Cactus addict in Greece presents his photo gallery, care tips, and book reviews. [Greek/English]
- http://cactus.thelo.gr

PlanetaCactus
- Comprehensive information about cactus. Watering, pots, and soil. Also features cards with photos for cactus ID and a forum.
- http://english.planetacactus.com/

Cacti and Other Succulents
- An extensive photo gallery of cacti and succulents, presented by a Slovenian hobby grower.
- http://www.tosca.si/zvone/

Jan Vandorpe's New Succulent Plant Pages
- Photographs of Haworthias, Gasterias, Crassulas, Adromischus and Aloes.
- http://users.skynet.be/fb235353/index.htm

Cactus Blog
- Weblog from a commercial cactus grower in the San Francisco Bay Area. On-topic and off-topic ramblings, since June 2004.
- http://www.cactusjungle.com/blog/

Rhipsalis
- Information on plants in the Rhipsalis, Lepismium, Hatiora and Schlumbergera genera, including species lists with photos, cultivation and propagation details, and links to vendors and collections.
- http://www.rhipsalis.com/

Mark Faint's Cactus Page
- UK collector offers classification and cultivation information on notocactus and turbinicactus, with photo galleries, explanation of nomenclature, and listing of other resources.
- http://www.mfaint.demon.co.uk/cactus/

Cacti_etc
- E-mail discussion list for cacti and succulents. Instructions for joining, archives of previous years' discussions, photo galleries, and resource links.
- http://www.labs.agilent.com/bot/cactus_home

Haworthia.com
- Colorado enthusiast presents a large number of photos of Haworthia , some taken on field trips to South Africa, with commentary, cultivation information, bibliography, and links to vendors and resources.
- http://www.haworthia.com/

The Cocozza Collection
- Enthusiast in the UK shares information and photographs on haworthia species, cultivars, and hybrids, as well as conophytum and adromischus. Includes illustrated propagation instructions and taxonomical reference.
- http://www.cocozzacollection.org.uk/

Ralph Martin: Cacti and Other Succulents
- Professor at Cardiff University presents information about his cactus hobby, with trade lists, photos, links to societies and other web resources, and a field number data service.
- http://ralph.cs.cf.ac.uk/Cacti/cacti.html

Webring: The Cactus Ring
- This webring links about a hundred sites on topics of cacti and succulents. Includes both hobby and commercial sites, in several languages.
- http://webring.com/hub?ring=cactusring

The Melocactus Site
- Features a photo gallery of about twenty melocactus species, a list of endangered species, and a brief bibliography.
- http://dialspace.dial.pipex.com/town/drive/xz06/melocactus/

Cactus Romania
- Romanian enthusiast shares information and photos of his cacti and succulents collection. Some of the information, including the forums, is in Romanian.
- http://www.cactusi.com/

U4BA: Euphorbia for You
- Dutch enthusiasts of succulent Euphorbias present illustrated articles, a photo gallery and list of plants for trade.
- http://www.u4ba.nl/

Lophophora
- Enthusiast's weblog describing his trials and tribulations growing primarily small Mexican cacti. Notes and photos on seed-starting, visits to botanical gardens, and battling pests.
- http://lophophora.blogspot.com/

Paghat's Garden: Succulents
- Index to a large number of pages describing individual species of crassula, euphorbia, lewisia, sedum, sempervivum, and others. Each page contains photos and personal observations, and many add background and cultivation information.
- http://www.paghat.com/garden14.html

Cactus-books.com
- Maintains a listing of books on cactus and succulent topics, with brief descriptions and price comparisons among online sources.
- http://cactus-books.com/

Nekoya
- Japanese cactus enthusiast displays photos of his many plants, and a few cultural tips.
- http://shaboten.com/

Conophytum Cultivation in New England
- Enthusiast describes the growth cycle and provides information on care and propagation of this genus of succulent oddities.
- http://www.ucc.uconn.edu/~mro93001/cono.html

SuccSeed
- Supplier of cactus and succulent seeds offers helpful cultivation pages with tips on propagation and hardy cactus care, and an extensive photo gallery.
- http://www.succseed.com/

Gardenweb: Cacti & Succulents Forum
- General discussion, including care, selection, and sources.
- http://forums.gardenweb.com/forums/cacti/

Epiphyllums, epicacti, allied cacti and hoyas of New Zealand
- Enthusiast gardener shares botanical information, cultivation and propagation tips, and photos of his plants and gardens.
- http://home.clear.net.nz/pages/grant.bayley/

Rivenrock Gardens Philosophy
- California organic edible cactus nursery shares their thoughts on organic gardening as it pertains to growing cacti.
- http://www.rivenrock.com/philosophy2.html

Not Forgetting Aztekium ritteri
- Article by Bill Weightman on this Mexican cactus, with photos, history, and cultivation information. First published in The Cactus File magazine.
- http://www.cactusfile.com/magSample.htm

Cactusweb.us
- Photo galleries and information on cacti and succulents. Images added by the public.
- http://www.cactusweb.us/

Caudiciform.info
- Floral designer with a penchant for growing unusual caudiciforms and succulents showcases her pachypodium, stapelia, euphorbia and other species, captured in artful photographs.
- http://www.caudiciform.info/

Cactus and Succulents
- Basic information on caring for, propagating, and grafting cacti and succulents.
- http://www.cactus-and-succulents.com/

The Cactus Database
- Resource site with care tips and articles, a photo gallery, and forum.
- http://www.slcwebdev.co.uk/cactus/html/

Yahoo Group: Cacti and Succulent Seeds
- Forum for trading cacti and succulent seeds.
- http://groups.yahoo.com/group/Cacti-and-succulent-seeds/

Succulent Plants Database
- Searchable database of cacti and succulents, with a photo for many species. Search results can be presented in thumbnail form.
- http://albino.sub.jp/en/

Andy's Cacti
- Californian gardener showcases his extensive photo gallery of cacti and succulents including ariocarpus, mammiliaria, astrophytum, orecereus, opuntia, euphorbia, and ferrocactus.
- http://public.fotki.com/Ondy/

Cactus Art
- Shopping site run by enthusiasts. Includes large photo gallery, featuring regular and oddly grafted cacti, a glossary of cactus terms, and an etymological reference.
- http://cactus-art.biz/

The Paradise: Cacti, Bromeliads and Nature in Brazil
- Information, photos and news of Brazilian flora and conservation efforts.
- http://www.cactos.com.br/

Prickly Richard's Cactus Page
- Personal cactus page containing cultural information and photos.
- http://www.richardadam.pwp.blueyonder.co.uk/cactuspage.htm

Flora.boskowan.cz
- Basic information about cultivation of succulents and cacti. Includes a gallery and opportunity to purchase further information.
- http://www.boskowan.cz/flora/english/

Black Cat Nursery
- Information about hardy Sempervivums and Sedums, with planting and care tips including hypertufa pots and rockeries.
- http://www.localaccess.com/blackcatnursery/

Amateur's Digest: Cacti, Succulents, Caudiciforms
- Offers comprehensive information on growing cacti, succulents and caudiciforms.
- http://www.theamateursdigest.com/

Cactus & Succulent Club Malta
- Contains information on meeting dates, newsletters, and features a selection of exhibition photographs.
- http://www.petngarden.com/cactusclubmalta/

Haworthia
- Information about the Genus Haworthia from Ingo Breuer. Provides cultivation hints, books, and a gallery. Site available in English and German.
- http://www.haworthia.info/

A World of Southern African Succulents & cacti
- Information on the succulent society, and a list of books available. Also features a virtual tour, resources and a forum.
- http://www.succulents.net/

Bryophyllum
- Features contributed images, nomenclature and growing information, forums.
- http://www.bryophyllum.com

Aloes
- Complete guide about aloes. Includes pictures and descriptions of the many types.
- http://www.succulents.co.za/aloes/aloes.htm

CactusBase
- A comprehensive computer database package for storing records on your Cacti and other succulent plants, seed raising activities, literature collection and photographs.
- http://www.cactusbase.net/

Cacti Succulents and Caudiciforms
- Photo gallery of cacti and other succulents, euphorbs and caudiciforms classified by families, genus and species.
- http://www.cactus-succulents.com

Cactus Museum
- Cactus information and photos.
- http://www.cactusmuseum.com

Succulent Plant Site, The
- Succulent encyclopedia, including family and species descriptions, history, pests, bugs, diseases, habitat requirements, and photographs.
- http://www.succulents.co.za/

The Succulent Plant Page
- Offers general information, care and propagation tips, and specialized pages on asclepiads, haworthias, peperomias, and sempervivums. Also information on current events and links to societies.
- http://www.succulent-plant.com/

Lithops - an Introduction
- An introduction to collecting lithops with information about their habitat, evolution, cultivation and points of related interest.
- http://www.lithop.supanet.com

Cacti and Succulents
- Information and links to other sites focused on the cultivation of Cacti and other succulent plants.
- http://www.suite101.com/welcome.cfm/cacti_and_succulents

Kaktus and Nordisk Kaktus Selskab
- Henrik Helms Madsen's cactus collection. How to grow the plants. Society information.
- http://www.kaktus.dk/

Sukkulente Euphorbien
- Information about succulent euphorbias. Includes photos, recommendations and how to grow from seed. Site available in English and German.
- http://www.euphorbia.de/