GRAMMAR The LinguaCenter Grammar Safari http://deil.lang.uiuc.edu/web.pages/grammarsafari.html On-Line English Grammar An online searchable grammar book . http://www.edunet.com/english/grammar/index.html The Digital Education Network's English Language Practice Pages. http://www.edunet.com/english/practice.html The Eleven Rules of Grammar. Includes examples of correct and incorrect usage. http://ucsu.colorado.edu/~giaquint/grules.htm