URL shorteners create short links that forward onto web addresses that are long and hard to remember. Omani.ac is the shortest URL shortener I've come across. Bookmark it and use it when you're emailing a long web address to a friend or posting a link on a site.
There's also an API that programmers might find useful. Twitter, for example, automatically substitutes links that are thirty or more characters long. Perhaps you'll be able to find a use for it!