I had a google adsense banner on my page,,, lured by the chance to earn some money. I found that my competitors were appearing on the banner. Of course I wouldn't know how much if any business I lost to them. I took the banner off my page but am left with a problem. I use netfirms webhosting. They reserve the right to place a google banner on my page to cover the cost of hosting. I added a couple of paragraphs to my page about another subject, hoping to alter the content of the google banner. That worked, but I suspect that also hurts my rank in the search engines.