Are there websites like CC for college classes?

<p>I didn't really know where to post this, but the AP forum has helped me a lot, especially the list of recommended prep books. Are there resources like this for college classes, where almost everything is created by a lot of students and parents, not some company or one person?</p>

<p>This is great for math and science:
Physics</a> Help and Math Help - Physics Forums
This is also interesting:
Student</a> Doctor Network Forums | An educational community for students and doctors spanning all the health professions.
You can search Google for forums. Typing "biology forum" into Google gets this:
Forum</a> - Biology-Online
typing "chemistry forum" into Google results in this:
Chemical</a> Forums - Index

<p>Thanks, those are really helpful. I thought there might be something consolidated like this website, but college is a different playing field I guess.</p>