Through Larry Ferlazzo's Websites of the Day blog, I learned of a grammar practicing site called "No Red Ink". I signed up very quickly (less than 2 minutes) and started practicing. I got to choose topics I was interested in (I chose Seinfeld, Friends, and the Daily Show) and then it started to test me. I was amazed that it was challenging enough that I only got a 70% on apostrophes! Then it gave me a tutorial over the questions I missed. I could also track my progress and see which specific rules of each section of grammar I was proficient in, which ones I was not, and which ones needs more data. It keeps track of all of that stuff. And teachers, you can also register and create a class and have students get their results sent to you (think Skills Iowa only students can choose to read information on topics they are interested in). I'm not a literacy teacher, but I found this site very simple and cool to use. Might want to check it out.
No Red Ink