Clay Shirky talks about generosity in online communities Posted onMarch 13, 2009March 15, 2009AuthorStewart Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Click to share on Tumblr (Opens in new window) Tumblr Click to email a link to a friend (Opens in new window) Email Click to print (Opens in new window) Print