Absolutely. The WildWorld Refer-a-Friend program is a feature I found to be quite rewarding. For every friend who completes the WildWorld sign-up using my referral link, I receive 10 free Sweepstakes Coins. With the possibility of referring up to 10 friends, the potential to collect up to 100 free Sweepstakes Coins adds an extra layer of excitement to the WildWorld experience.