http://orb.nordicminers.euThe dev is also giving away the premine as bonus blocks, below is taken from the devs page at cryptcointalk
ORB will be given to Miners as transaction fee's,, at a rate of 2000 ORB per day, unlike lucky blocks from other currencies their won't be a way for people to judge the timing.
Amounts to be randomly given to Miners per day
1) Ten lots of 20 Orbitcoin
2) Four lots of 50 Orbitcoin
3) Four lots of 100 ORB!
4) The big lucky 250 ORB! 4x per day
5) random 1 to 8 ORB fee's amounting to 200 ORB per day
