1. Mango languages
Mango languages Spanish is really a good resource to study Spanish. Better than Pimsleur.
2. Live Mocha.com
Another free website to learn Spanish.
3. Spanishpod.com
Spanishpod101 competitor...haha...it will be something interesting to see who will do better.
Of course, there are a lot more. In my opinion if you just stick to these sites, you should be able to master the foundation.