My Top 5 FREE Mindmapping Tools

Used as a mind-map, Popplet helps students think and learn visually. Student can capture facts, thoughts, and images and learn to create relationships between them.
-Easy to use, simple and colorful
-Allows users to integrate text, images and videos into mindmaps
-Able to add collaborators
-Export to jpg or pdf
-Available on iPad and the web. Create and access from either platform.
-FREE versions; ALL features, up to 5 popplets

Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
-Icons and themes
-Add images,links and text.
-Export pdf or png
-FREE version: Up to 3 mind maps, share, collaborate

Brainstorm online with bubbl.us. Easily create colorful mind maps to print or share with others. Almost no learning curve. Businesses, universities, and other schools are using bubbl.us worldwide to generate ideas, map out processes and create presentations.

-Export map as image
-Add mind map to your website
-Share mind map via link
-Available online and iOS app
-FREE version: Up to 3 mind maps

SpiderScribe is an online mind mapping and brainstorming tool.

-Capture and organize text notes, files and image, calendar events and locations in free-form maps. Also has drawing mode.
-You can create private or public maps, collaborate and share with others.
-Maps are stored “in the cloud” and can be accessed from anywhere.
-FREE version: 3 private maps, unlimited public maps, sharing and 3 mb files and images space

Create the best looking mind map online and share it with others. Enjoy mind mapping by brainstorming collaboratively on ideas and projects.

-Add icons, hyperlinks, text, images
-Import images from Google
-Add videos from Youtube and Vimeo
-FREE version: 3 mind maps