Guest Post Written by Ujjwal Grower and edited by Vishal Vishal's intro: Twitter is a free social networking and micro-blogging service that allows users to send updates (text-based posts, up to 140 characters long) to the Twitter website, via short message service , instant messaging , email , or an application such as Twitterrific . Twitter was founded in March 2006 by San Francisco start-up company Obvious Corp. The restriction to 140 characters has resulted in Twitter being labelled as “micro-blogging”. A traditional blog is a log of what somebody is up to but in a richer, more detailed format. One of the key aspects of Twitter is to send and receive updates (also called tweets) via your browser, email, instant messaging clients and SMS so you can keep in touch no matter where you are . How it works : When you send in a mobile text (SMS), Twitter sends it out to your group of friends and posts it to your Twitter page. Your friends might not have phone alerts turned on so t...