Jason Clarke at Download Squad has a good article about two new online mind mapping applications, MindMeister and bubble.us. Mind mapping software is very useful to the creative process, as you probably know, but also usually very expensive as I am sure you also know.
Read Jason’s article then go and have a look at the two different sites. You can get stuck in at bubble.us without even registering, although you need to register to save anything. MindMeister is still in private beta, so you cant test it, although they will let you sign up for their newsletter, woot! Do these people not get it?
UPDATE: Thanks to Larry Hendrick, I now have some invitations to the beta of MindMeister. If you want an invite let me know and I will send you one. I will do a more in depth review of this, plus some other mind mapping software, soon.