Sometimes you just need a little bit of help, whether it be differentiating homonyms, discovering synonyms, or clarifying possessive articles. There are a lot of great sites out there that will help you to do that. My personal favorite is Grammar Girl‘s Quick & Dirty Tips. She does a great job of clearly explaining concepts that some of us may have missed in middle school and high school. In fact, Mignon Fogarty would have made a great grammar teacher.
Another awesome site for grammar tips is The Oatmeal. Be sure to bring a sense of humor to this site, and make sure you have lots of time to spare because you may find yourself browsing the website for a long time.
With that said, I hope you’ll take a look at some of my grammar tips and tricks. I’ll be adding things over time and as questions arise.