Last week I had an encounter with ageism. This is not unusual in social media circles but for the first time, at work at least, it was aimed at me.

While introducing myself as the presenter of a social media training course, one of the attendees mused that he was expecting someone “considerably younger” than me to be doing the training!

Now its true, I’m no spring chicken and time hasn’t been particularly kind to my face, but age does not preclude a person from understanding social media.

Or even participating in social networking, as I’m about to prove.

Lets assume old is aged 45 and over (obviously I’m considerably younger than that). Well, according to the latest social networking demographic report 40% of Facebook users are over 45!  Here are the figures for the other popular sites:

YouTube:  45% of users are over 35
Facebook: 40% of users are over 45
Twitter:     63% of users are over 35
LinkedIn:  48% of users are over 45
MySpace:  28% of users are over 45

Of course we are assuming no one’s been lying. After all one of the main advantage of online socialising is that no needs to know exactly how old you actually are, unless you tell them.

As you can see, it is just about true that MySpace is still for the kids and LinkedIn is for the infirm, but YouTube and Facebook has now been infiltrated by the silver surfers.

I remember, when email was the preserve of the youth (OK , I am over 45). Now it’s a mandatory communications channel for everyone between the ages of 10 and dead.

As technology matures it will, like its users, gain a middle age spread.

My sarcastic student was only joking and wasn’t that much younger than me. He, after all, had signed up for a social media training course rather than being of an age where its benefits were inherent.

Having spent much of my early working life trying to convince crusty business people that online should be taken seriously as a marketing channel I found his comments ironic.

My much fresher face and its implied inexperience was a barrier to credibility then but now the older version was a liability too!

But ageists and marketers need to take note; the inhabitance of social networks may not be as youthful as you might think.