Making random thoughts into something coherently understandable.
Forget people rummaging through your rubbish, forget junk email phishing for bank account details, I can show you the most heinous example of identity theft.
I thought I’d sign up for Twitter but failed at the first step. Enter name.. r e d s m a r t i e … “That name has been taken. Please choose another.” what! That’s right, an imposture!
Take a look here
Join the fray by commenting, tracking what others have to say, or linking to it from your blog.
That article is less about getting your online identity back as hiding your digital indiscretions. Too late for that 
There were however two sites there where I haven’t signed up in the past
The worlds only big enough for one Redsmartie.
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http://lifehacker.com/software/how-to/reclaim-your-name-online-279297.php