Social media started as a youth thing, which businesses can take advantage of. But social networks are also used by business executives, viz LinkedIn and Ecademy.

Ecademy’s co-founder Penny Power recently came first in a competition to reach the most people using social media tools. She signed up to give a presentation at a conference on webcasting only two days beforehand, and got invitations out to 5,000 people by twittering, blogging and posting on the Ecademy network – a real-life example of the strength of social networks.

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