72% of online adults use social media.

42% of online adults use more than one social media site.

89% of 18-29 year olds use a social media site.

72% of 30-49 year olds use a social media site.

60% of 50-65 year olds use a social media site.

43% of 65+ year olds use a social media site.

There are 1.15 billion Facebook users.

There are 1 billion Google+ users.

There are 550 million Twitter users.