Clackamas Community College
Clackamas Community College: Alkenes
Clackamas Community College provides a great resource on alkenes. This site teaches you about the nomenclature and structure of alkenes. It also discusses the two types of isomers alkenes can form and addition reactions.
Wolfram Research
Wolfram Science World: Alkyne
This site from ScienceWorld provides a very brief but factual description of alkynes, and describes the differences between alkynes and alkenes.
ClassFlow
Class Flow: Chemical Kinetics and Alkane Nomenclature
[Free Registration/Login Required] This flipchart covers essential concepts of factors that affect a chemical reaction and nomenclature of Alkenes.
Wikimedia
Wikipedia: Functional Group
Encyclopedia entry for functional groups that, in in organic chemistry, are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules.
Other
Frostburg State University: Organic Chemistry Help
This site is designed to be a supplement for students of organic chemistry. Its tutorials and self-grading tests are interactive and extremely helpful.