Porphynet is an informative site about porphyrins and related structures. Porphynet provides information relevant to porphyrin (and analogues) chemistry. It introduces this family of colorful molecules that includes chlorophyll and heme, the iron-containing core of hemoglobin. The site offers links to experts, books and journals featuring porphyrin chemistry, porphyrin articles on the web, medical applications of porphyrins and much more