Capsicum Varieties Database
- Description of the varieties of chile pepper plants in the genus including photos.
- http://www.g6csy.net/chile/database.html

The Chile Pepper Institute
- Non-profit organization devoted to education, research, publication and archiving information related to capsicums or chile peppers. Also seeks to preserve chile germplasm, of both cultivated and wild species.
- http://www.chilepepperinstitute.org/