One of the best grammar sites

My favorite resource for grammatical refreshers is Grammar Girl. Need to know when to use "lie" versus "lay?" Where to place the apostrophe? She's got all the answers.

Editing

Proof reading, rewriting and checking for grammatical and punctuation errors are all part of writing, but often overlooked in the rush to beat deadlines. What others might consider tedious work, I enjoy and will be glad to assist you in cleaning up, tightening and improving your writing.