Gatzke: I think buyers will find that the amount of information at their fingertips will continue to grow. It remains to be seen how powerful Zillow/Trulia may become, and that will vary from state to state based on disclosure laws and within states; it will vary from MLS to MLS based on how they decide to work with Zillow/Trulia.

GlobeSt.com: In your experience, how much do you find that the average buyer relies either of these two sites?

Gatzke: For the most part, today's buyer relies on these sites extensively. Ninety-four percent of Texans shopped online when house-hunting in 2013. Everyone is getting information about houses on their computers, tablets, telephones, etc. Some—but not all—buyers shape their own search rather than being introduced to properties by their agent. Most are a combination of both, and a good agent will continue to add value to their buyer-clients' home searches by introducing them to properties. Agents are the first to receive information on new listings through other agents and through our MLS. At this point in time, Zillow and Trulia don't have immediate access to completely accurate listing information so smart buyers are looking online for education and relying on an agent for current information, access and counsel through the home-buying process.

GlobeSt.com: How much do you think this will affect you as a broker?

Gatzke: Some industry leaders are concerned that the ultimate goal is to get rid of the need for an agent. I don't believe a website can ever replace agents on the ground with real-time, real experience IN the community. There will always be a market for good service and hands-on expertise.