Did your great airfare suddenly disappear? Blame “dynamic pricing.”

You probably know what Melanie Frazier felt like when she recently tried to book a flight from Portland, Maine, to Atlanta.

She found a $257 fare — not a bad deal — but by the time she got around to booking the ticket online a few hours later, the price had risen to $441. Undeterred, she set up a fare alert through Google, and a week later, sure enough, the fare plunged to $246. Read more “Did your great airfare suddenly disappear? Blame “dynamic pricing.””

In a world without secrets, here’s how to almost disappear online

It may only be a slight exaggeration that companies know more about you than you do about yourself.

Fire up your cell phone or laptop if you have any doubts. Companies can predict what you want to buy and show you ads for them. They know your birthday. They can even tell when your teenage daughter is pregnant. Read more “In a world without secrets, here’s how to almost disappear online”