lol, You would think they would block tinyurl links? I have a "tiny url" site too. It built several thousand back links then the links disappear after awhile. I think I lost half of them. It also has 1 Dmoz listing http://www.google.com/search?q=spiturl.com&cat=gwd/Top (which is fake from the 301 redirect) This topic was if this site makes money? I think I made 10 cents in 2 months. The links use mysql, so you have alot of links being used you may run out of connections on your mysql server. Really its not great niche that make you lots of money. but Feel free to use http://spiturl.com though!
Guys, if you are really run on tinyurl style, i really think it can iframe some Ad, else, it's wasting our resources(programmer) in coding the service
Actually, I heard that in links (such as ebay) they put their affiliate codes into the URL. Seeing as they handle millions of hits a day (or at least hundreds of thousands), a little bit of cookie stuffing can go a very very long way. Don't you think?