The Grammar of Slang
- Article analyzes the grammar behind contemporary slang. Includes the various uses for 'like', 'stuff', 'whatever', and 'so'.
- http://www.berkeleyhigh.org/features/slang/

English Idioms and Slang
- Alphabetic dictionary of English colloquial words and slang
- http://web1.150240.vserver.de/cgi-bin/main.cgi

Twists, Slugs and Roscoes: A Glossary of Hardboiled Slang
- Definitions of the lingo used in the crime fiction and movies of the '30's and '40's.
- http://www.miskatonic.org/slang.html

Sayings Explained
- Searchable database of well-known sayings, phrases, and slang, along with definitions and origins.
- http://brochuresonline.net/sayings/

Commonly-Used American Slang
- An alphabetical list of words and expressions, set out as a quiz with hidden answers.
- http://www.manythings.org/slang/