In many ways, your Digital Identity is what you make it - especially where services like Twitter and Facebook are concerned.

There's no one right way to use a service like that. How you want to be seen on the web is, in most cases, a personal choice - there are things I'd say to close friends offline that I'd never tweet, but then there are some people who don't mind the world knowing their in-depth secrets.

Do those services contribute to your identity? Certainly - people who meet me at events often comment that they've been following me on Twitter long before they actually meet me in person - and as such they know me best through what I tweet.

Are they everything? No. Soft skills, personality, and passion play a huge part - whether you're talking digitally or in the offline world, if you've got an abrasive personality then you'll run up against the same problems in both.

I don't see my digital identity as anything more than a part of my identity as a whole - professionally, I am me online, and I'm me offline. Others keep much more of a separation - and that's OK too.

As always, it's good to look before you leap - take a look at some of the many examples out there of people who have used social media and it's come back to bite them - or those who have used it and got a lot out of it.