If you've registered on bitcoin.cz and is currently mining on it, then yes, you're currently pool mining. However, my advice is to stop mining on a laptop with nVidia graphics. You're killing your laptop for a couple cents. Mine on desktops with ATI graphics card, or stay put for ASIC's.
It's due to the way ATI and nVidia designed their chips. In ATI, there is thousands upon thousands of miniature cores each capable of calculating simple problems, compared with nVidia's minimal amount of more powerful cores. Bitcoin mining is essentially doing simple calculations over and over again, and thus ATI's are better in this regard. An ASIC for bitcoin mining is an incredibly effective hardware for mining Bitcoins, purportedly running at over 60 GH per machine (your nVidia runs like 6-10 MH I'd wager, or like a couple of magnitudes slower). It's almost released by multiple manufacturers, although there's still no confirmed ASIC in the wild.
John is giving you good advice. Laptops were never designed to have the GPU maxed out at 100% 24/7. You will destroy the graphics card in your laptop and it would be either insanely expensive to replace, or is not replaceable and will destroy the entire laptop in the process.
Earn a couple pennies this month vs a non zero chance of destroying a laptop. Hmm...
Yeah, especially the rMBP's. Everything is contained in such a small package that the mining will kill it far more quicker then a regular laptop. Not worth the mining, IMO.
The worse thing is it dying after your warranty's over. Macs are really expensive to repair.
(edited on request to remove some stuff)
