http://french.about.com They have:
Listings of multinational french teaching companies (ie. you can find a class with most of them almost anywhere in the world).
A very well developed audio library
A massive selection of lessons, vocab lists, and just abou everything else.
They also have support forums for any level of french. If you have been learning french for 2 days or 20 years, they will still help you.
http://www.research.att.com/~ttsweb/tts/demo.php
Pronounces anything you type in a realistic voice, in any language (according to aFrenchie: Juliette is the most realistic french speaker there).
http://lepatron.tapor.ualberta.ca/
Checks french sentences/paragraphs for grammatical errors, and tells you where they are. It does not fix them for you (not that it should, you are supposed to be learning). According to aFrenchie, again, this site picks up most errors, but not all errors.
http://www.frenchpodclass.com/
61 (and growing weekly) pod casts teaching french. I belive brad first posted this.
If you have a few dollars (I think it is ~$20), buy Rapid French (Volume 1) from iTunes, it is very effective, but does not teach enough to use it as a sole learning source. This was also first posted by brad.