The Milestone Referral is a useful widget system that will greatly enhance any online form-based campaign that you may be running. The way it works is simple: first, you will add a widget to your campaign form. Next, you can use the Referral Count Widget that will allow your participants to see how many referrals that they have brought to your campaign - a great way of making people feel involved. Finally, there is the Milestone Widget, which will allow the participant to see how many milestones in terms of referrals they have reached. This sort of interactivity is key to getting the public involved in a campaign, so if this is your aim, give The Milestone Referral a try.