- Arboretum de Villardebelle - Includes photographs and information on conifers from around the world, gymnosperm taxonomy, and scientific articles.
- Euforgen - European network promoting conservation of genetic diversity among conifers to ensure evolutionary adaptability under changing climatic conditions.
- Gymnosperm Database - Basic information (sometimes only a name) for all species and higher-ranked taxa of the gymnosperms, including conifers, cycads, and their allies. Includes many images.
- Plant Diversity: The Conifers - Information and photographs of several gymnosperms that grow in the wet tropics of Australia.
- Araucariaceae (36)
- Cephalotaxaceae (5)
- Cupressaceae (119)
- Pinaceae (238)
- Podocarpaceae (20)
- Sciadopityaceae (3)
- Taxaceae (31)
- Taxodiaceae (26)