Hi wiserworld, I noticed you from Webanswers.. Well to be honest. Putting to many ads on your page can get you flagged for over promotion. If you are posting links to your other hubs you can post as many as you would like. But if you are posting links to other websites to promote them and try to get the refers, you cannot have the same link more than 2 times in a hub, and usually I would not do more than 5 referrals in total to other sites. Like i said, if you are back-linking to your own hubs, you do as many that would fit your hub, but try not to make it over promotional or that will hurt your score.