Other
Sta: Punctuation and Capitalization Rules
Use this handy guide for a quick reference to punctuation and capitalization rules. Includes rules for end marks, apostrophes, capitalization, commas, quotation marks, and many more!
Other
Blue Book: Hyphens
This site from The Blue Book of Grammar and Punctuation contains seven rules for correctly using the hyphen, along with examples for each of the rules.
Rutgers University
Rutgers University: Guide to Grammar and Style: Semicolon
The Guide to Grammar & Style provides this tutorial on two common uses for the semicolon: 1)to separate items in a list after a colon, and 2)to separate two independent clauses in one sentence.