Agreed. In the past 6 months alone, companies with expansive networks are truly attracting the critical mass of people with all different ages and interests (th

Agreed. In the past 6 months alone, companies with expansive networks are truly attracting the critical mass of people with all different ages and interests (these "sharing" businesses are no longer have user-bases consisting of early tech adopters). This is proving itself with the enormous valuations for companies such as Groupon for shared buying power, Facebook for shared social news, Zynga, etc.