I am looking at the "Rate/Review an Agent" section. Can someone tell me what it means when an Agent'What are "contributions" that are listed beside the number of listings an agent has by their name??April 04 2012 - Vienna00YesReport a ProblemProblemSelect oneOffensive contentIrrelevant contentSpam (pure self-promotion)OtherDetailsYour emailPlease enter a valid email address.Submit CancelContent flaggedWe will review this content. Thanks for helping make the site more useful to everyone. To learn more, read Zillow's Good Neighbor Policy.We're sorry. This service is temporarily unavailable. Please come back later and try again.