Tutor.com  All Ages
On demand tutoring online 3pm-10pm daily. Personalized help on countless subjects. To start, you just need your library card.

WolframAlpha  All Ages
Introduces a new way to get knowledge and answers.

The Lexile Framework for Reading: Find a Book  Elementary/Middle School
This free, online book search allows children and their parents to quickly and easily select books that will match a child's reading level and interests.

Khan Academy  Middle School
This website has over 2400 videos on everything from math to history to biology. Students can watch videos, take practice test, and get assessments from any computer with access to the web. You can even earn badges and bragging rights by completing challenges!