bitcoin
namecoin, i0coin, groupcoin, ixcoin (merge mined @
http://mmpool.bitparking.com/pool)
freicoin
ppcoin
bytecoin (merged mining in the works)
recently:
zetacoin (the only "our asics have to ROI now!!!" coin that succeeded by making everyone's ASICs ROI)
tigercoin (tried to make ASICs ROI even more but hasn't succeeded yet, worthless on coinex)
tekcoin (again, but the dev gives zero fucks and it looks oh so very dead, might never go to any exchange)
Ocoin (will probably go to exchange one point, might be as "profitable" as tigercoin though)
ASICcoin (doesn't even conceal the fact that it wants ASICs to ROI even more - probably for ASIC people that are sad they missed the zetacoin train. however, everyone smelled the bacon and it's been rather worthless until now on coinex)
-> summary: it looks like people won't want to feed recent asic owners any more free money than they did with zetacoin, so you might as well just go with the bitcoin pool that gives you the smallest stalerate while merge-mining as many coins as possible and revel in the fact that your asics most likely will never ROI. At least that way you'll get the most out of them.
Going on hashcows etc. is probably not really worth it, as ASICs 1000000 times bigger than your erupters swoop down on any of these coins once they are more profitable than BTC on coinchoose for a split second and rape it beyond saving.
