Link in the Signature.

[mdwali]

Can I include any link in my signature?

 

[Omer Said]

http://www.racedepartment.com/pages/terms-of-service/
Above you can read the rules of the forum. But here is the part you are asking:

Avatars, Signatures and Profile Pictures

• Avatars, Signatures and profile pictures are governed by the same rules as other content streams. this includes but is not limited to not permitting sexually explicit content, offensive material, and advertisements.

And you have to become a premium member in order to have/edit your signature.