Shorten a Long URL

Ever come across a really great web site that you want to share with someone, only to find that it has an extremely long URL? You try copying and pasting it into an email, but it doesn’t work because the link breaks when it wraps to the next line of your message.
Luckily, there are several free Web services that can shorten that URL for you. Just enter in your long URL, and you get back a much shorter one that will redirect you to the same place.
One of these, has compiled a list of URL shortening services. The list includes a side by side feature comparison for each service. Some allow you to choose your new url and others provide statistics.