TinyURL.com - shorten that long URL into a Tiny URL

Do you want to share an really big URL in a presentation to an audience or in a printed document?
Maybe it isn't such a good idea. It's a boring task to copy it and in a presentation you don't want to show a slide for 5 minutes to let everyone copy it.

Well, you can use TinyURL.com. Type any long URL you want and it will create a new one like http://tinyurl.com/37xaar. It can be useful.
I found out about it in TechEd, when a speaker left some references in the end of the presentation.