So you have a site about football. If another football related site wants to pay a handsome sum to advertise on your website do you take it? Some people have a strict policy when it comes to accepting ads from competitors. My personal policy is if the price is right (Bob Barker reference there for all you fans!), why not take the money? If somebody else selling widgets wants to advertise on my widget site, sure I might lose some sales, but hey who says I can’t charge competing sites more than neutral advertisers?

Not to mention I definitely don’t mind advertising competitors sites if mine is better. So if somebody wants to advertise their new widget site on my PR5 widget site, why would I worry? Even if their site is leaps and bounds better than mine I can always make back the money in advertising. If you are advertising a competitor website on your site you should always raise the price. After all, the target is nearly 100% targeted. It will convert a lot better for them due to the similar nature of their website.