http://bitcoinpyramid.com/r/9183 Hi! I just developed Bitcoin Pyramid (inspired by Bitcoin Randomizer). Here are some features: - no password or email address needed - no limitations on hierarchy depth - no limitations on the size of membership fee (you can start with 0 btc!) - about a half of deposited money goes to random members - new members that do not follow referral links become referrals of random members - automatic payouts when income hits the threshold (0.01 0.021 btc currently) - all the pyramid info is published on the site, daily backups of the whole mysql database are available at http://bitcoinpyramid.com/backups - due to previous 2 features, there is almost nothing to hack! It is in alpha beta-stage yet, I will be grateful for any questions, comments and bug reports. http://bitcoinpyramid.com/r/9183