when you add links to Twitter I suggest that instead of using urls like
http://www.turnaround-uk.com/i-know-what-you-want
you add a little bit of code to allow google analytics to identify they came from twitter
http://www.turnaround-uk.com/i-know-what-you-want?utm_source=twitter
And shorten the url using http://tinyurl.com
That way you know where traffic is coming from and you can evaluate the worth of Twitter. Shortening the urls allows for more precious characters for other words about a title.