Google's URL Shortner
I was recently using Bit.ly to hide my link url's, but have now moved over to Google's short URL. Reason being is I didn't realize until a couple days ago that you can track the links in pretty good detail and you don't have that ugly bit.ly link which a lot of people these days know you're hiding an affiliate link. It's nice especially if your doing any online marketing for affiliate offers etc....
Anyway, hope you all have a wonderful Friday evening!