Since some of you are high school students and may be contemplating it, I just wanted to share my opinion - don't do it unless the grades are perfect! If I could go back and change anything about high school, it would be NOT doing this. I took a bunch of classes in 11th grade and got credit from a local community college, but being in 11th grade, I wasn't the most serious student, so I got crappy grades. They had told us we didn't have to transfer the grades to later institutions if we didn't want to, so I thought it wouldn't matter; it turns out that (at least at my school) you HAVE to transfer them, and later I had no choice. So what happens now is that the grades follow me around (despite being 11th grade english, etc.), are used to calculate my total GPA (hence bringing it down) and it is a pain to have to get transcripts from the community college (you can't order them online, so I have to drive for two hours to pick them up). Don't do it unless you know you need the credits, and you anticipate great grades, and you don't mind having to bother with the transcripts later... (like in scholarship competitions, grad school apps, etc.). Just my two cents, don't want all of you to regret it like I do!