Facebook will today announce that it has reached 500 million users. This number is incredible, and perhaps even more impressive is the rate at which the social network is growing. Just five months ago they had 400 million users. The site’s user base has grown by 25% in less than half a year. Incredible stuff.
Image via Wikipedia The biggest group on Facebook are not university or college students, or even people in their 20s in their first job. According to analysis by iStrategyLabs, the biggest group of users on Facebook are 35-54 year olds. Their study of figures for the US that are publicly available to advertisers shows that