Google Document can also be useful. It gives you a "cloud" to store documents that you can access from wherever there is internet and it can be used for collaborating with others. It's password-protected, but I'm not sure if I'd use for anything super-sensitive. However, if your planning - say - an activist dinner, and you need a way for 10 people to be able to easily edit and add who has confirmed their attendance, it works great!
~ Jamie West
Peter HJ said:
I'm a huge fan of iGoogle, as the base for a quick Intranet. Tabs can be shared, so it can also act as weGoogle. And iFrames can be used to include any non-Google content you like. So, at no cost, you can have a secure 'start page' with scheduler, chat, to-do, knowledge base, translator, currency converter, skype, RSS, weather, street maps... plus it's dead easy to customise & can lookas funky as you care to make it. I reckon this could become the killer app for stewards/delegates/reps.