In this episode of MarketFoolery, host Chris Hill and Motley Fool Hidden Gems analyst Abi Malin discuss the market's biggest headlines.TripAdvisor's (NASDAQ: TRIP) earnings report sent the stock higher, but the company still has a few questions to answer about its long-term strategy. Marriott International (NASDAQ: MAR) put up a good fourth quarter, and its integration with Starwood Hotels and Resorts seems to be paying off in spades.