Tag Cloud is a visualization of word frequency in a given text as a weighted list. 'Tags' are usually single words, and the importance of each tag is shown with font size or color. 
  • You may wonder how I have done this nice tag cloud.
  • You can create one for your own with different styles using  http://www.wordle.net/.
  • Just paste your text or URL, it will calculate the frequency of each words and do the visualization for you.
  • NOTE: You need to install Java Runtime Environment on your machine to run this but I am sure you will love this.