@pd7 - So we are in beta phase with PitchFuse and have gotten an overwhelming response with the giveaways. We have been setting them up by hand to this point, so we're now building an interface where you can easily create one yourself. I'm not sure if we can take on any more giveaways until that time.
Regarding the top recruit, when a user signs up for a giveaway, they are presented with a unique URL that they can use to spread the giveaway. When someone in their network clicks through to the giveaway, it says "you were referred by ___. You can enter the giveaway below." If the person chooses to enter, then I, as the referrer, get a point.
When you say that the top recruiter gets a prize, then the person who referred the most people via their individual link to the giveaway will get the prize.
For example, I referred one person to this giveaway (who then entered their email):
http://pitchfuse.com/giveaway/chromosom ... lection/63Underneath the giveaway, it says I am the top recruiter for this giveaway. If someone else referred 2 people who then entered, they would be the top recruiter.
This website is really early stage, so in the coming weeks we'll be adding more detail (FAQ page, better design, easier admin functionally, etc).
Sal