Call it defensive marketing, but it is a indisputable responsibility of any marketer to answer the questions and address the concerns of your potential customers. Google suggest is an incredibly insightful and often hilariously revealing tool. By entering one word or leading phrase, you see what the general internet population is seeking the answers to from the most philosophical ("What does life mean?") to the very practical ("How many hours of sleep does a kid need?") This is also great way to find out what people want to know about your brand.