Walker Fullerton is senior product manager at TripAdvisor. Walker has built key elements of the instant booking commerce platform, which was a central shift in TripAdvisor’s business model and has headed other new initiatives that have contributed to the growth of TripAdviser’s revenue. TripAdvisor® is the world’s largest travel site, enabling travelers to plan and book the perfect trip and is a pioneer in monetizing user-generated content. They reach 350 million unique monthly visitors, and have more than 290 million reviews and opinions covering more than 5.3 million accommodations, restaurants and attractions. Their sites operate in 47 countries worldwide.