There are a lot of differing opinions on which type blog performs best. I’ve found that a hosted WordPress blog with a professionally designed AdSense optimized affiliate theme works best for me. In the past I’ve tried to use free WordPress themes, but to be frank, without major hacks they’re poor performers. Really, a person can spend months working on a free Blog theme and not make any money for their efforts. And, if I might add this tip. those who use anything other than a hosted WPBlog are at the mercy of their provider. There’s been horror stories about these free services just deleting your blog. without any warning. My time is too valuable to put a lot of money and effort into a free service just to wake up in the morning and see it gone.