This lovely infographic has a veritable plethora of data (datums?) on age and social networking. What sticks out? Social network users are much older on average than you may have thought. Average age of someone who tweets? 39 years old. Average age on LinkedIn? 44 years.
Take a look, some 47% of internet users aged 50-64 are users of social networks, maybe its time they were given more respect. Thanks to FlowTown for compiling this be sure and check out the high-resolution version.