This week's Travel App - Tornado, from the Red Cross. If you live in the midwest, this is a must. It's for iOS and Android. It'll go off if there's a tornado warning where you are, and has a host of other functions including a strobe light to get a rescue worker's attention.
This week's Travel Site - LiveATC. Listen to live or recorded air traffic conversations.
This week's Travel Tip - When you check in, ask for a room that doesn't have a connecting door. The doors make the room's walls paper thin and you can hear everything. You also need to make sure the door is locked. So if you can avoid having a connecting door, do.