Free Google Apps for Non-Profits

Google Docs allows users to share the same online copy of each document, spreadsheet, or presentation. All revisions are saved and recoverable. Presentations can be delivered to remote audiences, and documents and spreadsheets can be published internally for people to view. Import and collaboratively edit or publish from .doc, .xls, .csv, .ppt, .txt, .html, .pdf and other file formats. Best of all, Google Docs is totally free to use!

Short video explaining the concept in plain english http://www.google.com/apps/intl/en/business/collaboration.html

Explore Google Apps and what's available

If you are a registered non-profit, here's how you get hooked up!