Beware. The promotion's run over to scaming people. There is no guarantee about make double money as instantly in short time. Be smart.

May I could be wrong, but if you still have do as participant for those giveaway, probably you'll get red-trust cause support these project.

Remember if you add your email to their website, you mail data could be sell out in one day. are you'll get many scam / phising mails.