Screen capture tools:
http://plasq.com/skitch
http://www.tuaw.com/tag/ishowu
http://www.jingproject.com/

Best Freeware Design Software:
http://lifehacker.biz/articles/best-freeware-design-software/

Collaborative script writing tool:
http://www.plotbot.com/

If games are needed, look here for inspiration:
http://goodexperience.com/games/

Track online video dissemination:
http://www.tubemogul.com/