I was reading about using URL-shortening services for citations. One concern with these URL-shorteners is that they completely disguise the content behind the URL; worse yet for citations is that they hide the validity of the source.

Since ThnLnk doesn't always "thin" the links, i.e., your resultant URLs aren't necessarily shorter, I implemented the completely numeric URL:

http://thnlnk.com/0000002128

But now to put more information into the "thin link" I added the domain to the numeric URL:

http://thnlnk.com/solutionwatch/0000002129

Now you have a source and a thinner link!