If you have been using Twitter, visited a friends twitter page, or seen Facebook status show up with weird URLs in them you have likely been noticing shortened URLs. (Learn how to update Facebook with twitter)
These shortened URLs have come about because of the limit of characters you can use on twitter (140) so posting a long URL to a blog post (such as this one at nearly 90 characters) would take up nearly your whole message. Instead you can post http://tr.im/2h6l and use that to access the article about Facebook and twitter.
I personally use the tr.im service and have enjoyed it (they keep stats for you so you can know how many people are clicking on your links and from where/when).
Here is a list of the 11 Best URL Shortening Services out there. Check it out if you use twitter. I’d encourage you to pick one and bookmark it for easy access.
Warning!
While these URLs are very convenient for a service like twitter, I would avoid using them in printed material. If you have a web page you want people to go to from your church bulletin, use the full address. It will help them remember your domain name to tell others, and will have less problems with people typing them in wrong.
Example: we used http://tr.im/2h6l above and it links to our blog here at nineteen05. Clicking doesn’t have any issues here but what if you were typing and the L looked like an I… Now we’re at a German Internet sales magazine article… 2n6l leads us to an article about mobile phones and security… 2n6i to a NYT article on a potential role of Chinese savings into the financial crisis.
With that warning given, we encourage you to use these url shortening services online. But when it comes to print you are far safer to write out your full address.