According to this calculator, this blog is worth $1708.20. Conversely, my present value calculations, given that I've been running those ads for over a year, indicate the blog is worth $165.06, and that's infinite-horizon. And that assumes providing new content is costless!
Not that I ever expected to profit from text ads, the statistics are just interesting, so don't feel compelled to click! I suspect the readerbase is too net-savvy to even notice them.