Popplet is a free mindmapping tool that can be used on an iPad or on the web. Popplet is very easy to use and the interface is very easy to navigate. Users are able to change the color of the bubbles to fit their topic or desire.
Bubbl.us is a free mindmapping tool available both on the web and on iOS-run devices. Mindmapping and collaboration is easily achieved with this tool. Create colorful, ready-to-print mind maps in an instant.
Coggle is a free tool that can be housed in Google Drive. Create collaborative mind maps that are easy to share and edit. With Coggle you're able to see the track changes made to the document as they are made and by whom they were made.
Padlet is a simple-to-use mindmapping tools that makes it as easy as double-clicking anywhere on a wall and include text, videos, links, documents, pictures or other files from your computer desktop.