Vacations can lead to the most unexpected business decisions. Several years ago, while researching Hawaiian vacations online, Scott Taylor found a site with a feature that the others didn't have: an interactive map. This map not only showed where each cabana was located, but it also detailed availability and nearby amenities in a convenient, at-a-glance package. Taylor, a founder of Mark-Taylor Residential in Scottsdale, Ariz., booked his tropical getaway confident that, before his plane even touched down, he had a clear picture of what he would get for his vacation dollar.