Not quite buying humans, but investing in a social stock market, you buy shares in other social users who have linked their Twitter, Facebook, LinkedIn, Flickr, Blogs and RSS feeds to their account. Based on their social activity, their stock will rise and fall, as will your dividends and investments.
I still haven’t quite figured the whole thing out, such as, does my stock value rise with the amount of Twittering or posts that I have, or is it in the amount of investment others put into my stock value. Apparently, like the NYSE and NASDAQ, share prices can fluctuate daily based upon social media and Empire Avenue interactions, but their is really no clear indication on how that works.
This social interaction game is VERY addicting though, as I have caught myself following my shares, and others. You are able to put price alerts on other users to watch when their stocks either rise or drop past a certain level, and I have already caught myself frantically selling off shares on a poor investment, who I guessed had been very active at one point, but had not put any worthwhile posts on for a while.