Introduction Let us take an example of the blog post entries on a web page. If there are lot many blog posts, it would become very difficult to scroll up and down to read a post. Instead, it would be much better and aneasier way of accessing the post we could for examle pass the blog id in url e.g. localserver:8000/1 or localserver:8000/4 etc. This will directly take you to bolog id ‘1’ or blog id ‘4’. This is also the case with twitter or facebook etc when people say follow me @name. Since there are huge number f users and username were displayed on the page to select from, it would not be possible for us to querry/serch and access the