Mind Mapping tools
作者：Peter DiFalco
1. SimpleMind+
1.1. iPad and Desktop versions
1.2. Free versions are limited
1.3. Very simple
2. MindMeister
2.1. Mobile and web-based
2.2. Powerful
2.3. Can store in Google Drive
2.4. Free version: 3 maps
2.5. Expensive for more: $30/yr for EDU
3. Bubbl.us
3.1. Web-based
3.2. Desktop-only (Flash)
3.3. Free
