A problem with these sort of sites is that you're associating your business with another business that could easily be competing with your own, or worse be some

A problem with these sort of sites is that you're associating your business with another business that could easily be competing with your own, or worse be something that affects the image of your business (for example race hate, pornography). The other problem is that why would a website use this service? Because they have low traffic; how many low traffic websites are there? Millions. So you're going to be competing with millions of other (potentially crappy) websites to get your advert on... a potentially crappy low traffic website, one that will probably not be related to yours in any way. The traffic will be of no real value, someone making a blog about fashion reviews isn't going to want traffic from a website that sells potatoes. I assume the basic idea is they sell it for such a small price ($2.95/m) that most people will sign up and then not really care if it doesn't work all that great, if they have a million customers they're going to make a substantial amount of revenue even if their value to customers is non-existent.