OCHeM.com http://www.ochem.com/pop
A site dedicated to helping students with organic chemistry by providing quick reference topics.
ACS Organic Division http://www.organicdivision.org/
The Division of Organic Chemistry of the American Chemical Society. Provides important information and announcements on the divisions activitities and member benefits.
ORGLIST Archive http://www.orglist.net/
Discussion list of nearly 500 organic chemists worldwide. Join this community or search their previous discussions by author, subject, date, or thread.