Is their a sweepstake script where you encourage people to promote your website and by doing this they will be enter into a sweepstakes automatically. Therefore, I want to have a script, or a software, or any other method where it can be known who is spreading the message and promoting my website. And wha they will do is, they will just be telling others about my website via email or bookmarking or through site like digg or facebook. Will a tell-a-friend script work for this or an email subscribition (however both method does not say who is promoting the website and who is not)? So please tell me how do I carry this out and what should I do! thank you in advance!