Your web address is the easiest way for someone to find you...so why make it difficult.  I can't stand when I see a URL like this one on a PowerPoint,

http://www.msreadiness.com/competency.aspx?cid=500

where we tell people

"Just go to this webpage to get the information."

So, check out this site: Good URL, Bad URL 

It's kind of like a "This is Broken" for web addresses.