In Search of the True Geraniums
- Article from Sunset Magazine provides some background and cultural information, and descriptions of recommended species and cultivars.
- http://www.findarticles.com/p/articles/mi_m1216/is_n3_v200/ai_20463592

Rob's Plants: Hardy Geraniums
- Pennsylvania gardener compares the leaf shapes and flower forms of the geraniums in his garden, and offers a few cultural tips.
- http://www.robsplants.com/plants/geranium.php

Hardy Geraniums
- Home gardener in Ireland enthuses about her favorite class of perennials in this article filled with photos and information about the various species and cultivars.
- http://www.esatclear.ie/~emal/geran.html

Growing Hardy Geraniums
- Describes the cultivation, care, and propagation of these plants. Includes photos and facts about individual species.
- http://www.devonian.ualberta.ca/getgro33.html

Glendale Geraniums
- Large collection of photos plus a discussion forum.
- http://www.glendalegeraniums.co.uk/