Partners In Learning Network (PIL) is many things to many people. The PIL Network provides a global support groups for teachers at every level of education and at every imaginable stage along the technology integration spectrum. It offers professional learning opportunities, free software downloads, and excellent lesson plans that can be used in any classroom. And the best part is: It's all FREE.
The Partners In Learning Network also provides a Forum where educators can post questions or search for lesson ideas. Teachers can even connect through this virtual community to arrange virtual field trips for their classes.
Another link you'll find here takes you to The Learning Suite, which is a group of programs educators may find very useful. These include:
Math Worksheet Generator
World Wide Telescope