Google Apps for Education

Related links:

Google Apps for Education Help: - Overview, video and more.

Google Apps Education Community:
- discussion forum, community map, video tutorials & online guides

Google Apps Lesson Plans:
- for Google Apps products Docs, Sites, Calendar, sorted by grade level and subject

Google-based resources
Google recently revamped their Google Apps Admin help center, with lots of great links and resources.  Here's the link to the deployment homepage for educational institutions and a link to training videos for many specific uses of the various apps. On the deployment homepage, they offer full step-by-step explanations on how to migrate your current domain, and then extensive support for your implementation.