Grammar and Mechanics
The final touches a writer puts on a piece of work is proofreading for grammar and mechanics. The following sites offer comprehensive guides and practice exercises for grammar and mechanics topics:
Guide to Grammar and Writing
From Charles Darling, Capital Community College, use the pull-down menus next to each grammar or writing topic to select a topic. The grammar quizzes provide good practice!
Grammar, Punctuation and Spelling
From Purdue University OWL, these handouts, PowerPoint presentations and exercises provide help with grammar, spelling and punctuation. It's easy to find what you are looking for here!
For help with the most common grammar mistakes, try the following from Literacy Education Online: