grammar practice -when you find yourself with nothing to do...

http://www.harcourtschool.com/menus/preview/harcourt_language/grammar_park.html - easy grammar (grade school) good place to start

http://a4esl.org/q/j/ - more multiple choice grammar practice

http://www.newsroom101.com/ - journalism grammar practice

http://annenberg.usc.edu/images/pdfs/current/GPSE.pdf

http://www.aug.edu/~mduignan/Grammar_%20Practice_%20Web_%20Sites_%20Fall_%2008%5B1%5D.pdf

http://www3.niu.edu/newsplace/grammar.html

http://home.comcast.net/~garbl/writing/grammar.htm

More to follow on this....