A little over a month ago I posted about how to get an invitation to Google Writely. It turns out now you don’t need to do that. The official Google Writely Blog posted about this yesterday:
This week, we have finished inviting everyone who’s been patiently on the waiting list, and have reopened registration to the public. If you haven’t already, now is the time to sign up for the Writely beta!
So if you’re interested, head on over to Writely and sign up!