Can anyone suggest what is a good additional coin (profitable) to merge with p2pool???
I would assume, that as you are working on BTC you can make additional funds?
What's profitable today, might not be next week - so I mine them all, just in case......

BTC, DVC, IXC, I0C, GRP, HUC, FSC &, until yesterday NMC - which happens to be the most lucrative atm.......
