Web Sequence Diagrams [UML]

Save yourself time by creating your sequence diagrams with
http://www.websequencediagrams.com/

Collaborative Online Mind Mapping

MindMeister brings the concept of mind mapping to the web, using its facilities for real-time collaboration to allow truly global brainstorming sessions. Users can create, manage and share mind maps online and access them anytime, from anywhere.

http://www.mindmeister.com/