Interesting article in the Sydney Morning Herald today that confirms the Dunbar number (which I referenced in an earlier post titled Social networks – chasm ahead!) is alive and well in the realm of social networks.

According to the article, which touches on the research of Will Reader, an evolutionary psychologist at Sheffield Hallam University:

Other studies have shown most people have about 150 people in their extended networks, with just a small number considered a member of the inner circle of close friends, Reader said.

Even when people’s social networks ballooned into many hundreds or more than a thousand people, the number of close friendships did not change, he said.