1. http://www.ajkids.com/ - Have a question? All you have to do is type in your question and click ASK.
2. http://www.jiskha.com/ - Homework help for teens
3. http://users.erols.com/bram/ - Mainly math homework help
4. http://www.discoveryeducation.com/students/index.cfm/ - Resources for students
5. http://www.hhmi.org/coolscience/ - Cool science for kids
http://www.guidetoonlineschools.com/library/online-homework-helper - Homework