What do Cosmo, Facebook and Malcolm Gladwell all have in common?
I first learned about Dunbar’s Rule or the Rule of 150 in Malcolm Gladwell’s book The Tipping Point. He states that the optimal number of individuals in a society that someone can have real social relationships with is 150, therefore companies and communities are most effective when they are less than 150 in number. I challenge anyone to sit down and write down the name of everyone you are in regular contact with – friends and family. This should not include all 1000 of your Facebook fans.

I am an avid reader and have to get in my fix of easy reading. I was surprised when I read in Cosmo magazine that we only really keep in touch and have relationships with 150 of our friends on Facebook. In Spencer Well’s Pandora’s Seed, he makes a connection between our hunter-gather ancestors and Facebook. In his book, he states that the average number of friends people have on Facebook is 130, just under the 150 cut off. Therefore, for the majority of Facebook users that want to stay in touch and share with those they have the closest relationships with just like bands of hunter-gathers that didn’t go behind that count in their groups.
The next time you think about adding another Facebook friend, consider whether or not they fall within your 150? I know I probably won’t….

