Bitcoin

Neat: wordpress starts using bitcoin: en.blog.wordpress.com/2012/11/15/pay-another-way-bitcoin

I would just like to remind everyone downvoting questions or answers that it would be beneficial to the community if they were also to comment on what is wrong with the piece, as per StackExchange's Etiquette - bitcoin.stackexchange.com/faq#etiquette

you'll want to select a mining pool

I recommend Eligius, they have easy setup and will maintain your anonymity better than a lot of the others

as has been discussed AMD does much better than Nvidia for this particular purpose, but if you just want to test anything will work