Yahoo Real Estate

I dropped in on Yahoo Real Estate and looked for Wenatchee Homes. I also searched for Houses For Sale in Wenatchee and zip 98801.
But what I got was confusing. Besides many listings (but no way all of the listings in the NCW MLS)there was a high percentage of Wenatchee Homes Sold in the last three years. These homes were shown as currently on the market, they had recent listing dates and prices from several years ago.
I think making information available to prospective buyers and sellers is a good thing and encourage it. But looks like Yahoo (at least in this instance) like ZILLOW and RedFin still have a lot of work to do.