Standing tall at around 175million users spread across 200 countries and territories, LinkedIn has come a long way. From being touted as a “no-nonsense zone” to one where professional networking is gradually turning fun, LinkedIn is now the most popular social networking site, only after Facebook and Twitter. They seem to have been sweating hard to be there, as is evident from the number of new features that have been rolled out in the past few months. The heartening news however is that most of the changes are not for namesake and are meant to change the ways in which LinkedIn was being used by professionals and companies. Here is a peek into the most important constituents churned out from the whole make-over thingy and their abilities to make a difference.