Author Clay Shirky in his book, Cognitive Surplus, asserts that because of a shift in media being something we merely consume (i.e. broadcast media,magazines, newspapers) to something in which we participate (i.e. Blogs, social media, sharing tools, etc.) we are now able to use our collective free time (as a society or a subgroup of society) to do some pretty cool things. For instance: Ushahidi.
Kind of humbling when I think about what I accomplish (or don't) with my free time. What is the most constructive thing you do with your free time?