Apostrophe Catastrophe
- Features multiple-choice answer game to learn about this punctuation mark. [Flash plug-in required].
- http://website.lineone.net/~crowseed/apostrophe.html

Quotations and Correct Punctuation
- Explains and illustrates the rules which apply to quoted material, including where to place colons and commas.
- http://plato.acadiau.ca/dagora/tutorial/qpunct.html

Punctuation
- Describes common difficulties and how to work out the correct usage, as well as taking account of international differences.
- http://www.stage-door.org/stampact/punc.html

Punctuation Reminders
- A list of the most common errors, with sentences indicating correct usage.
- http://www.virtualsalt.com/punctu8.htm

Punctuation Tips
- Features a list of commonly used and misused punctuation marks, with examples.
- http://www.lrcom.com/tips/punctuation.htm

Joys of Punctuation
- Explains when to use commas, semicolons, dashes and hyphens, with light-hearted examples of correct and incorrect usage.
- http://www.engl.niu.edu/comskills/students/editing/Joy.html