Shouldn't url shortening sites have short urls themselves? http://www.letteroremail.com/4/ isn't exactly short. something like trim.to (not mine or anything) makes a lot more sense. 6 letters.. sure there are small ones too. and theres a typo on the page ("inter") Also it has no information about it - like if they expire or anything. might be handy for people to know.
And what about a link like http://www.mylongurl.com/affiliate/32 getiwle/e3K3k~3k3!93jfdkq/109210651 00/subcat/browse.asp?a=3&MDRN=20 0&c=54410&109215FE591520av7 when it turn into http://www.letteroremail.com/4/ also no information mean no expire
This is really the incorrect place to advertise your site. You should have posted this in the website reviews section or something. Most people already use places like http://tinyurl.com/ to shorten their links.