Do you use bit.ly to shorten a URL, you can then take that shortened URL and gather some quick and potentially useful metrics from it. Try the following steps:
1 - Visit bit.ly.
2 - In the box, enter the URL you are interested in discovering information about (such as an article from a competitor’s Web site or an article you wrote last month), then press “Enter” or click “Shorten.”
3 - Copy your freshly-shortened link (it will look similar to “Example A” below), paste it into the address bar of your browser (the place where you would manually enter a URL to visit), then add a + (that’s a plus sign) onto the end of it (to make it look like “Example B” below) and hit enter.
Read More : http://www.zdnet.com/blog/seo/pro-tip-use-bitly-to-view-your-competition-8217s-twitter-and-facebook-reach/794