I need sign ups can you help

I need some signups for my own social network site
I am going to see if I can run a competition
I just received a hotel saving card that is good for a year MSRP1000
I will send it to the person who gets me the most signups to my social network site
I know the price is not the best but come on what have you got to lose
It free to sign up
I am ordering more of the cards due to being a distributor at one time
So if you can sign me up 100 people I will send you one.
And I will send you one for every hundred you get me
the site is
http://momsmoneymanager.ning.com