Twitter allows you to communicate without the hassle of writing out long blog posts or emails. The format of the Tweet allows you to get away with a link and a few words that can be sent on the go from your cell phone.

And this tweet can potentially reach thousands of customers or business prospects, driving them to your website or blog, and drawing attention to your products.

In turn, you will receive notices whenever someone you are following Tweets something. You can receive instant notification in your browser, cell phone, email, and even on IM clients like AIM or MSN Messenger. Basically, it's more or less impossible NOT to keep touch with your Twitter friends & followers, even if you're out and on the go.

Twitter's extremely simple interface and ease of use is probably one of the reasons why it has caught on like crazy.

Twitter was launched in 2006 by Jack Dorsey, and in 2008/2009 it practically exploded in popularity.

All kinds of celebrities use Twitter on a regular basis to communicate with their fans and followers, from musicians and actresses, to professional athletes and even political figures! Twitter allows us to sneak a peak at what our favorite celebrities are up to. Politicians like Obama use it as a campaign tool.