Run by the New Mexico State University, The Chile Pepper Institute is an authority on chilies. They provide useful information, such as chile pepper terminology, growing tips, and general information. We are proud members!
Scott Roberts runs one of the best hot sauce blogs out there, complete with reviews, spicy news, and podcasts. It is also home to the most complete Scoville Scale online. He also has a great t-shirt site: ChileheadTees.com
Pepper database is a crowd sourced reference for peppers. I'd encourage you to add your knowledge to the database so we can help make it a valuable resource!
Juanito's Peppers is a great source for fresh peppers (when in season), seeds, dried pods, and plants (in the spring time).
PexPeppers makes a variety of all natural hot sauces, pepper jellies, and fruity hot sauces.
Professional and Affordable Co-Packing Services. If you are looking to get your own hot sauce made, they come highly recommended.
A great review website run by Al "Buddah" Goldenberg. Highly recommended site to keep up with all that is going on in the fiery foods world!
Ken Alexander runs an awesome chile review site, a great place to check out for an interesting take on the spicy food industry.