I agree. Same with lots of articles on new sites, blogs, etc. But for what it's worth this paper was published in the Oct 2012 issue of Communications of the

I agree. Same with lots of articles on new sites, blogs, etc. But for what it's worth this paper was published in the Oct 2012 issue of Communications of the ACM, so it's at least that old. http://dl.acm.org/citation.cfm?id=2347755 http://dl.acm.org/citation.cfm?id=2347755