Editing Practice

Run-ons and Comma Splices:  http://grammar.ccc.commnet.edu/grammar/runons.htm

Articles:  http://a4esl.org/q/h/vm/fampeople.html       http://a4esl.org/q/h/9901/cw-articles.html    

http://www.grammar-quizzes.com/articlesum.html     http://owl.english.purdue.edu/owl/resource/540/01/