Translation of biz in Spanish

I would like to give you a proofreader's project. Proof reading sample sentences that were entered into the dictionary by our users. It is a very tough project and needs a lot of discipline and patience.
I will be creating an additional study with a student (his name is Juan), which may appear in local newspapers in the future (in English). However, this may take a couple of weeks too.
I guess California is really nice, right?? In any case, I live with my son away from our families. You can send me e-mails. I can recommend also lots of weblinks in order to learn German.