Which Travel Planning Site Is Your Favorite?

Ahh, Summer. Although I love Fall (hello, gadget fashion!), I can't help but get a pang of sadness knowing that this is really the last warm holiday weekend to look forward to this year. Summer is the quintessential time of year to travel and lounge around in the sun, and if you've headed out of town this season, you've most likely used a travel-planning website like Trip Advisor or Diddit to help you get there.

Besides the excellent deals you can find on sites like this, they make it super easy to book a room, get insider details on your destination, and mark that off your travel to-do list. Have you used travel-planning sites, and if so, which one is your favorite?