No coin is protected against 51% attack.
The thing is, with no ASICs, it's quite hard to get a lot of hashing power to mount a 51% attack. There's a lot of hashing power on suprnova, but not more than 35% I think, although I know for a fact that suprnova helps against 51% attacks if they happen.
So BitcoinZ is quite safe.


Yeah, you have 0% for the first month, after that 0.9%, but the question is, are you donating to the community?
Geekhash.io donates 100% of its 1% fee to the community, this is why it's the most important pool we have.