I signed up with their Legal Secretary career program and I love it!
It's extremely convenient to be able to submit exams on-line and I love the fact that you can email your instructors at any time. I've had to do so a couple of times and I always get a prompt reply. Plus, they automatically mail new materials as exams are taken so you're never without books.
I would highly recommend Penn Foster to anyone who wants to earn a career diploma or high school diploma from home in their spare time. Great for those who cannot get out, who work full time, and for those who simply want to work at their own pace.