About.com - Organic Chemistry - Information about the chemistry of carbon and life. Features lectures, notes, structures, and labs.
ACS Organic Division - The Division of Organic Chemistry of the American Chemical Society. Provides important information and announcements on the divisions activities and member benefits.
Arkat Foundation - Free ARKIVOC online journal and online education in chemistry.
Chirality and Odour Perception - Odor descriptions and molecular visualization of chiral flavor and fragrance chemicals.
Organic Name Reactions - Schematic representation of about 140 organic name reactions with references. Some of the schemes are animated.
Organic-Chemistry.org - Includes a searchable literature index, named reactions and protecting groups as well as a chemical database. [English and German]
ORGLIST Archive - Discussion list of nearly 500 organic chemists worldwide. Join this community or search their previous discussions by author, subject, date, or thread.
Porphynet - Portal of porphyrins and related molecules.