I was really interested in the @jonathanscard experiment. Jonathan Stark started this as an experiment that allowed strangers to share cups of coffee via a single Starbucks card. I wrote about it here.
Here's what Sam Odio said about what he was doing - which was all in the interest of experiments about money online (as was Jonathan's original effort).
While the experiment was underway there were some really interesting ideas and discussions about this kind of virtual sharing and its applications in the nonprofit world. Folks were talking about sharing museum entrance passes, ways to donate art supplies through frequent buyer cards, and other examples of giving things to strangers. Giving does not, of course, require any of the technology involved in the Jonathans Card experiment. Technology also doesn't change the observation I read about the whole experiment - "there are more nice people than jerks." But the technologies involved in this - frequent buyer cards, universal bar codes, mobile phones, twitter, blogs, television, news websites - all made it an experiment that moved fast, got known about quickly, and created its own energy which in turn invited in new variables (Sam). Fascinating.
Too many questions. These are just my first thoughts. Will think more after another cup of coffee.