I want to point you toward The Travel Insider. Yeah, I know, yet another travel site. Wrongo!
This is not Expedia or Orbitz or any of that sort of thing. This guy gives you a ton of tips on how to travel better and less expensively. There is also a lot of insider information on how the airlines are run, what sort of strange things they're up to at the moment, etc. Great stuff if you have to fly a lot.
He also does tours and such. Hey, a man's got to pay the bills.
He also has a weekly email newsletter which is great. I subscribed for "This Week's Security Horror Story", and I'm not disappointed. You can sign up for it on the home page.