I use http://www.mindmup.com a lot. There are some good charting tools out there too but I haven't jumped into using those yet.
I still think there needs to be a better way to do information management in general.
So I have been working on getting this going and thought I should show it off. We can use this mind mapper free through google (just authorize it) I have been trying to get it started so we can brainstorm all the time as well as keep track of what ideas we have so far, you can edit and save directly to Google Drive with this too. http://www.mindmup.com/#m:g10B4dZxCbpvMUjNmxKbEFLV000WU0
Edit... Once setup it opens and is editable in Google docs on mobile too!