Give me one other part of history where everybody shows up to the same social space. Fragmentation is a more natural state of being.

Building new connections is a critical part of building a new economy. The American education system, as flawed as it is, is great for the creative class because of the way it mixes up networks.

What happens online is you are constantly dealing with invisible audiences.

LinkedIn is very good for browsing relationships and hooking into your contacts' networks. It re-connected me with high-level execs I hadn't talked to for some time, who then helped me close various deals.

Social networks are like grease - in some cases, gasoline - for our personal business networking machines. If you aren't plugged in, you will be out-done by better-connected, hyper-networked colleagues and competitors.

The things that make us safest from others make us least from ourselves.

Most teens aren’t addicted to social media; if anything, they’re addicted to each other.