Bellflowers Provides characteristics of the various groups in the genus, with photos of several species.
Growing Campanulas Overview article discussing characteristics, cultivation, and propagation of campanulas in general, with a listing of species.
Jane Grushow: Campanulas Pennsylvania rock garden enthusiast presents photos and brief information for four small perennial species.
Paghat's Garden: Rose Canterbury Bell Entry point into more than a dozen pages, each describing a different campanula species or cultivar, with characteristics and photos for each.
