You should fill this form with at least a valid email adress in order you can receive you Nodum Userid to participate in our airdrop and to can access to the bonus campaing by recomend Nodum to other users. Also we will give bonus if you can show us than you are masternodes owner. Finally if you want to access to social media bonuses you should fill your bitcointalk and twitter information. For more info please check our bitcointalk thread.