Realtor.com Loses Northwest MLS

From the Seattle PI, the Northwest Multiple Listing Service dumps Realtor.com

The Northwest Multiple Listing Service will stop sending its home listings to the nation’s most popular real estate Web site in April. Local real estate executives disagree over whether the move is about focusing the MLS on providing information to its members or making it harder for smaller brokers to reach home shoppers who use Realtor.com. Many brokers plan to continue sending listings to the site on their own.

I wonder if this is a harbinger of things to come. I think brokers are exerting greater control of their listings as they begin to see the marketing value in them. So, how will this play out for other sites that are scraping those data sources?