Popplet - Mind Maps

http://popplet.com/
Examples of mind maps:

1. Create an account on www.popplet.com
2. Create a new Popplet.
3. Add "popples" to your Popplet.
4. Add pictures, drawings, and videos to your Popplet.
   
5. Add a collaborator to your Popplet.
6. Share or embed your Popplet.