I travel a lot. You might notice that I use sites like TripIt and Dopplr to help me plan my trips, keep track of where I’m going, and share important information with my friends and family and you. I also mostly fly United because I’m a long time frequent flier there (if I was starting fresh I’d focus on Virgin Atlantic and JetBlue because their planes are a lot nicer) and I use its site a lot. I also keep Flightstats.com on my iPhone so I can check if the gate agents are lying when they say the plane is on time.

But I wondered what I was missing, so I asked my Twitter followers what they use. The sites they came up with are very good. Here’s some. Do you agree with these? What sites do you use when you go traveling? Anything different than these?

@bcaudill said “used TripIt for my recent vacation and LOVED it. I’m also a huge fan of TripAdvisor, Kayak and for Europe, Worldby.com.”

@guhmshoo said: “hotwire.com”

@devahaz said: “kayak expedia jetblue virgin.”

@storming said: “Tripit and Kayak.”

@Jimconnolly said “Hi Robert – I use TripIt.”

@cja said “TripIt is pretty cool. use it all the time.”

@TravelMuse said: “also if you want to be inspired check out http://www.travelmuse.com/inspire/ and also plan your trips.”

@BettaSmetta said “http://tripadvisor.com is fabulous. had to find a cheap hotel in Midtown Manhattan, used Trip Advisor, and found an true gem!”

girlgamy said: “I really just use TripAdvisor. I never go to any hotel/resort before checking it out on TripAdvisor first. Invaluable!”

jeffq73 said “tripadvisor, dopplr, book directly with hotels for rooms.”

@dimensionmedia said “Travelocity and Expedia.”

@charnellpugsley said “I used to use Travelocity. Have trained myself to go directly to airline websites since they’re moving away from 3rd parties.”

@JamesOReilly said: “I like kayak.”

@abbashaiderali said: “I use Orbitz primarily or a travel agent (!) on a complex trip that might need 911 help. Tripit does rock pretty hard!”

@petefields said: “am an Orbitz man myself.”

@beatricetarka said “On my most recent trip to Italy I used exclusively search engine www.mobissimo.com. Results 40% of savings over competitors.”

@Jennifly said “I use tripwolf the one-stop travel guide to the world.”

@candees said “I like Priceline … I can almost always negotiate a good price on a great room.”

@rlepold said “I usually check a travel service for available fares, then go to the airlines’ site to purchase. Seems to be cheaper that way.”

UPDATE: there’s a thread over on FriendFeed where they are discussing even more good flight/travel sites.