The cost of fuel has really hit

We just booked some flights over the internet. The prices looked good and we happily proceeded to checkout. After entering too much information an error came back to say that prices had changed. They had doubled, a fact that was not mentioned until the end of the booking process. This was a travel site and not an airline site. Their information was bad either through poor software design or a hope that if they gave you an old price you would still book the flight even though the price had gone up. We left that site and went to Orbitz with gave us the correct prices which were bad but real. We were able to book flights that were less than those from the site we tried first but certainly far above the cost of this same trip last year. I guess that the fuel prices have really hit the industry.