I remember someone somewhere commenting on not knowing how to make long URLs shorter, but I just can't seem to remember in what thread I saw that. So in the hope that it will help someone somewhere, two websites:
http://tr.im/
http://tinyurl.com/
There are bound to be more services out there; those just happen to be the ones that I know. All you need to do is copy and paste a really long-ass URL into one of those websites, and it will generate a short and sweet URL that you can use instead.
Hope that helps!