This new world owes its origin to the rampant sharing of photos, résumés and personal news bites on services like Facebook, LinkedIn and Twitter, which have acclimated people to broadcasting even the most mundane aspects of their lives.
To Silicon Valley’s deep thinkers, this is all part of one big trend: People are becoming more relaxed about privacy, having come to recognize that publicizing little pieces of information about themselves can result in serendipitous conversations — and little jolts of ego gratification.
via nytimes.com