[Infinity]

http://forum.sa-mp.com/announcement.php?f=17

Quote:

Don't Advertise - A link to a site related to the topic is fine, spamming your home page is not. This includes advertising your servers and services. However, you are allowed to put advertisements in your signature or server advertisements. A rule of thumb is that "Here is something interesting others might like." links are allowed, "Please click this to benefit me personally." links are not (moderator's discretion is final). Note that "links that benefit you" includes pay-per-click links and advert click-throughs (adf.ly etc), use direct links instead.

My question to you is if it was that difficult for you to open up the forum rules thread, that is stickied everywhere, and look through it. It even has adf.ly mentioned explicitly, so a simple search would be enough....