For those of you that wish to access free online astronomy courses, check out Richard Pogge's courses that provide audio podcasts and course notes of the Solar System, stars & galaxies, and more.
http://www.astronomy.ohio-state.edu/~pogge/.
The Astronomy 161 and 162 are great introductions to astronomy
http://www.astronomy.ohio-state.edu/~pogge/lect.html
These have been around for a while and some of you are probably quite familiar with Richard's courses. Very good value!
Cheers
John