Good list of sites and apps from Peter Greenberg:
1. Flightstats - Track your flight status in real time, as well as airport delays, weather and traffic conditions around the airport.
2. Room77 - This brand-new site uses Google Earth and other technology so you can actually see the real view from specific hotel rooms. That means you can figure out which rooms actually have ocean views, versus the ones that require you sticking your head out the window to catch a glimpse of the water. They day before you check in, or even on the same day, call up the front desk and ask for one of those rooms.
3. Hotel Tonight - If you’re not an advance planner, and very few road warriors are, there’s a new smartphone app called HotelTonight lets you book hotel rooms at the very last minute for a discounted rate. Every day at noon, it releases three hotel deals in several different cities, and you have until 2 a.m. to book.