Paul Adams is a user experience research at Google. He recently gave a speech outlining research by Google and others into how people connect with each other and what that means for the internet.
It’s easy to follow, persuasive and, most importantly, not about technology. It’s about persistent facts about how people behave and what that means for designers (his audience) and marketers (my audience).
It’s a long read, but well worth the time: The Real Life Social Network v2