With your blog, is it profit or a non-profit blog?
I just dived into selling advertisement space on my blog. I really want to keep it at non-profit at this point, and only use the money made to pay for the domain and hosting.
Right now I don't have my blog monetized. But in the future, I will be turning it into a business. At that point, it will become profit, assuming that income exceeds the cost of hosting, etc.
I'm keeping it non-profit until I find reason enough to monetize it. First, I would need much much more traffic on a daily basis, and more search engine traffic in particular. Second, I would need to find the right kind of advertising that I feel comfortable with, and that makes sense for my set-up.