Here are some resources using Web 2.0
A portal of high-quality, free Internet resources for classroom instruction, developing project ideas, reinforcing specific subject matter, and tutoring in the class and at home.

Google Lit Trips
Take a virtual field trip to the settings in a variety of classic literature.

Virtual Manipulatives
A digital library containing activities for K-12 mathematics.

Interactive online simulations in math and science for grades 3-12. Fee for service but free 30-day trial is available

Web 2.0 to Go

A selection of online tools and applications on one page.