From the opinion: "Human beings love sharing. We swap, collaborate,
care, support, donate, volunteer and generally work for each other. We tend to
admire sharing when it's done for free but frown upon it—or consider it a
necessary evil—when it's done for profit. Some think that online, we're at the
dawn of a golden age of free sharing, the wiki world, in which commerce will be
replaced by mass communal sharing—what the futurist John Perry Barlow called
"dot communism."… But as the float of Facebook shows, commerce still
seems alive online. The law professor and economist Thomas Hazlett of George
Mason University jokes, "There sure are a lot of billionaires in this new
wiki economy."" Read more