I've been using this relatively new application on Facebook® called Memorable Web Addresses for Profile, Page or Group which allows you to create your own easy-to-remember URLs for various Facebook® areas.
Example: my profile URL on Facebook® is http://www.facebook.com/profile.php?id=1019772152. Well, that isn't exactly easy to remember. But by adding this application, you can create a customized URL that starts with http://profile.to/. You just have to make sure that someone else hasn't snagged the neat or unique name you thought up for that URL.
The one I picked is Totally Thomas, so I can now send http://profile.to/totallythomas/ or include it in my email signature and the link will take people to my Facebook® profile. Pretty neat, huh?
Memorable Web Addresses also allows you to create the same type of links for groups on Facebook®. So I decided to reserve http://groups.to/genea-bloggers/ for Genea-Bloggers.