Zillow spent months publicly calling pre-market listings bad for consumers. This week they launched Zillow Preview a product that lets Keller Williams, RE/MAX, HomeServices of America, and others publicly market listings on Zillow before they hit the MLS. The exact thing they condemned Compass for doing. This isn't about consumer privacy. It's about referral fees. Whoever captures the buyer's attention first controls the commission conversation and every major portal just chose a side.