- Resonance Structures
A guide to drawing valid resonance structures.
- MO Theory
An overview of molecular orbital theory with several examples using organic molecules.
- Resonance Energy
This site gives a comprehensive overview of how to calculate and use resonance energies.
- UV/Vis Spectroscopy
An excellent overview of ultraviolet/visible spectroscopy.
- Periodic Table
This link provides access to a very nice electronic periodic table.
- Virtual Modeling
This site has a virtual modeling set (Chime or Rasmol required).
- Organic Practice
This site has multiple-choice questions on organic chemistry.
This site has Web-based flashcards.
A reaction roadmap shows interconversions of functional groups, etc.
- Organic Reaction Mechanisms
Detailed information on virtually all types of organic reactions.
- MSDS Sheets
Here is an excellent searchable database of MSDS sheetsgood companion to an organic lab course.