In the following interview, Ann Mack, director of trendspotting at JWT, sits down with Brendan Byrnes to discuss the science and skill behind identifying big trends in their early stages. This sort of vision is absolutely vital for long-term investors and is a cornerstone of our own resident superinvestor David Gardner's system for crushing markets. He seeks out game-changing companies before Wall Street is keen to their potential and helps investors profit as the companies soar. Learn more about how David discovers his winners today with a personal tour of his flagship service, Supernova. Just click here now for instant access.

Brendan Byrnes: That ties into the product personalization trend also. You see Google really effective at tailoring ads. If I'm looking for dress shoes online, they know to hit me with that ad. Facebook, much the same way, they know a ton about you.

What are some other companies that are doing this? They're not the only ones. What are some of the trends we're seeing with that?

Ann Mack: You're seeing more of the retailers serve up their circulars or coupons that are tailored toward your past purchasing behavior. It's this idea of predictive personalization -- serving up coupons, offers, circulars -- that are geared personally toward you, your past behaviors, your interests, your demographic, your social network, your location, and so on.