This English and Portugese site presents all kinds of information about Brazilian species of cacti from taxonomy and phylogeny to photographs and pollination methods.
If you want to know about cacti and succulents, then this is the place for you! This site has links to nearly every page about this topic on the Internet, houses the official web page for the three largest cactus and succulent societies in the world, and has links to mirrors in over 7 languages.
Tom Tadfor Little is quite an interesting guy. This personal page of his has good descriptions, photographs, and if we know Tom, taxonomically correct.
This in-depth page focuses on cacti and succulents from the deserts of North America, although general information on the entire cactus family is also presented. Photographs, pathology, propagation, and classifications are covered.
