In this edition of The Motley Fool's "Ask a Fool" series, Motley Fool One analyst Jason Moser takes a question from a Fool reader, who asks: "I'm very interested in buying this current dip in Zillow's (NASDAQ:ZG) price but I'm unable to find the reason why this huge selling pressure happened. Can you provide some vision into if this is a good entry point for Zillow or should I wait?"