For Non-ProfitsNo hardware, software, or IT staff needed. On top of this, you can use the inbuilt chat system to message colleagues in real time.
Gmail's filters will protect your inbox from viruses and spam automatically.
"We are currently using Google Apps in all its glory (mail for 50 users, calendars, documents and IM) and are about to start our first bespoke development using Google charts - we will also be integrating Google products into the middleware solution we are developing in house."
Sarah Dyer, BeatBullying

Watch this quick demo but don't forget, if you don't own a domain you'll need to purchase one: