Images

Stock Exchange - Great source of legal images. (But you do need to credit the photographer)


Presentations

Prezi - The new powerpoint!
Powtoon Video presentation with animation!


Concept Maps

https://bubbl.us/ - User-friendly application for making concept maps


Video

http://ant.umn.edu/ - Online video annotation tool

http://www.youtube.com/user/minutedrlog/videos - One minute summaries of popular books


Technology Commentary