Kissa.be is open source tinyurl clone
code.google.com
code.google.com
Tinyurl leaves room for enhancement. I use tinyurl when I have to copy a long URL into a mail to avoid that it is wrapped and made inoperable.
Unfortunately tinyurl provides the url in bold. So when I copy/past it with thunderbird, it is copied as bold. This is not what I want. When I send the mail, it is often converted to text and bold is converted to '*' enclosing the url. It's ugly, useless and requires additional actions to get right.
If you could provide references in normal text and different wrappers like [http://news.ycombinator.com/item?id=280010] or (http://news.ycombinator.com/item?id=280010)or {http://news.ycombinator.com/item?id=280010} people would save time by picking the format they prefer.
If you could add the format specifications as url arguments, people could save the appropriate url so they get the desired format.
It is a good job.
Kill yourself.
Thanks