Mozilla Etherpad sounds like a winner too. Half the reason I was asking was because I wanted a collaborative document that I can link to on Trello without having to go through Google.

I use open writer for all my writing stuff.
Titanpad is also amazing for collaborating, and I was only notified of it's existence about a week ago. It's more or less shutting down in march, but pirate pad looks like it's the same thing. Basically it's a document that you and anyone with the unique url code can edit. It does not send alerts however. otherwise, it's very easy to copy and paste your finished collab anywhere, unlike skype.
@HeySeuss
Excellent! Can't wait to get this started. Out of curiosity, were you able to work on a world map by chance or jotted down some ideas? I'm pretty much going to be up and about for the next two hours I imagine. Staying up for longer than 36 hours? Can't fall asleep. Scumbag brain.
Also, would you think it is more productive to split up certain facets of the world between us to get down some basic ideas and then share them amongst the group? I feel this may prolong the onset of the RP, however.