what is this twitter think i hear about all the time, and what is it for, and why would i use it... i use facebook
Twitter is a free social networking and microblogging service that enables its users to send and read messages known as tweets. Tweets are text-based posts of up to 140* characters displayed on the author's profile page and delivered to the author's subscribers who are known as followers. Senders can restrict delivery to those in their circle of friends or, by default, allow open access. Users can send and receive tweets via the Twitter website, Short Message Service(SMS) or external applications. Its not like facebook or myspace.