I found this one day:

English 3870: Editing
A weblog for students to introduce each other to effective, useful websites for editors.


This website is more for a younger audience, but will remind anyone how you use most of the common punctuation marks. It tells you what a period, comma, hyphen, colon, and so on are and how to use them in the sentence. If you need a quick reminder of how to use these common marks in your sentences you should hop on board the punctuation train and take a quick look.

# posted by Rebecca : 9:31 AM

oh, ok.