University of Calgary, Chemistry Students Chapter
University of Aberdeen (learning to push curly arrows)
Virtual Student Model Kit (at Western Washington University.... lots of stereochemistry)
Colby College (includes Stereochemistry Online)
Organic Chemistry Reaction Roadmap (University of Memphis)
"Virtual Textbook" (University of Michigan)
Organic Reaction Flashcards (note that a lot of learning occurs when you make your own flashcards !)
Mastering Organic Chemistry (lots of things here that can help you when you get stuck)
If you have any other suggestions for sites please let me know via email to irhunt@ucalgary.ca