Last Updated Sep 6, 2010 1:23 PM EDT
We've mentioned SeatGuru only once before, several years ago, so it is high time to remind you about this incredible site, which should be bookmarked both on your PC and smartphone.
This site has an encyclopedic list of airlines -- just browse for the one you need -- and you'll find al sorts of information at your fingertips. Some of the information falls into the category of trivia, but much of it is highly practical. Here you can get detailed contact information, check-in guidelines, baggage rules, information about bringing infants and pets, and more.
If you're interested in comfort and have some time to kill, you can even browse the site's comparison chart to see which airlines have the most spacious and comfortable seats -- or scan the list of busiest airports and other travel tips. Seriously: Bookmark this site today.