A writer, editor, and translator, David Baird has lived several years in diff erent parts of Mexico. Now based in Austin, Texas, he spends as much time in Mexico as possible. A former resident of Mexico City, Shane Christensen has written extensively for Frommer's throughout Mexico, and is the author of "Frommer's Dubai" and "Frommer's Grand Canyon." He resides in New York, and goes back to Mexico at every chance he gets. Author of "Pauline Frommer's Cancun & the Yucatan," Christine Delsol has been traveling to Mexico at every opportunity for 30 years. She has spent most of her career in newspapers and is the recipient of an Associated Press award and two Lowell Thomas awards. Maribeth Mellin first drove the two-lane road from Cancun to Chetumal when tires hanging on sticks marked sandy roads to secluded campgrounds. She's kept track of the changes ever since, and is constantly amazed to see highway overpasses and gigantic resorts and parks. She's the author of "Traveler's Mexico Companion," which won the country's prestigious Pluma de Plata award, and has covered Mexico and Latin America for dozens of newspapers, magazines, websites, and guides.