Our program has a simple set of rules to ensure that users are referring actual people and are not just spamming large lists or referring themselves. The rules are: (1) Users may earn one (1) reward for each valid referral. (2) Users may not submit multiple email addresses in an attempt to earn a reward or an additional reward. (3) Users may not participate in a referral program where doing so would be prohibited by any applicable law or regulations. (4) Users may not use spam to obtain referrals. Users may not acquire referrals through unsolicited email to persons unknown to them, or through net or message board postings where the postings are unrelated to the topic of discussion or otherwise violate the terms of the site.