Check out the new referral contest at StumbleUpon Exchange. http://suexchange.com/referrals.php You get 10 Points per referral. You can use those Points on the site to get your sites stumble by the other users. This is a new site so it should be very easy to find people to refer! Also, the top referrer from DP Forums on August 26th (one month from this post) will receive $10 PayPal! So, sign up at suexchange and get your referral code! Thanks.