Mindmeister: only used it once but i found it after reading good reviews and it did the job for me
Real-time Brainstorming Simultaneously work with colleagues on
the same map and see changes as they
happen.
Easy to use Start using our award-winning interface with simple,
well-designed functions right away -
no training required.
Highest security standards 256 bit data encryption, secure data center
hosting, no administrator access. more
Mobile access MindMeister mobile, our iPhone application, provides
access to your online mind maps where
ever you are. You can create new maps,
edit them and sync them with the your
MindMeister account. Through our
unique user interface you have both
the comfort of an iPhone application
and the familiar interface of
MindMeister.
Open Standards and APIs MindMeister is based on open source
software. It's REST-based API allows
for easy, seamless integration into
other applications.
Access Anytime, Anywhere Maps are stored securely online - no attachment
mailing or version conflicts.
Cost-efficient and easy to deploy No need for local installation or
upgrades, zero maintenance or
compatibility issues.
Offline capability The MindMeister Offline Mode allows users to work on
their mind maps even when they’re not
connected to the Internet. All changes
will be saved locally and synchronized
back into your MindMeister account the
next time you go online. MindMeister’s
offline mode leverages Google Gears
(Premium feature).
Full Audit Trail The entire change history of a mind map is stored as
separate revisions or versions. You
can revert to any particular prior
revision and view all changes to your
mind map via the History View.
