Rules for URL shortening services

URL shortening has become a vital tool for social media networks especially with Twitter and other micro blogs gaining popularity. A huge number of shortening services have sprung up to meet the needs with some offering additional features like reporting on top of the basic service.

Came across these 3 rules (Commandments) for URL shortening services at the URL 360 and found them very interesting as they make a lot of sense. I wonder if some one is working on setting up a web standard for URL shortening and their use. The 3 commandments are:

1. Thou shalt not FRAME my url.
2. Thou shalt not display any advertisements during the redirection of my URL.
3. Thou shalt not promote additional information during the redirection of my URL.

Commandments: http://www.url360.me/commandments.html