Possible Duplicate: SEO drawbacks of having paid links without nofollow? A few companies are will to pay us for links on our homepage. I am assuming these are legitimate sites although they are unrelated to our sites content. Would google penalize our site for having these links? We definitely need the revenue and we view this as selling advertising space- but I don't want to kill our good ranking. Does anyone have any insight, is it possible to ask google directly?