The blogroll has ratings. Where did these come from? Can they be changed?

Right now, the ratings are a result of score voting by all registered participants, requiring participants to be registered users of this site. This is not at present automatic. However, ratings will be updated on request and users may propose their own rating, on a scale of 0-9, for any link. Explanations are not necessary, but are certainly allowed. If this gets complicated, pages will be created for each link. “Votes” are not anonymous. Get over it. Take responsibility.