CNN.com - Top 25 Travel Websites
According to CNN, "... theWeb is an essential tool for travelers, but as booking engines and trip forums evolve and multiply, you have to know where to look".

Times UK - 50 Best Travel Websites of 2007
Another year of innovation and refinement as travel websites continue to become more niche, focussed and useful to consumers

Times UK - 100 Top Travel Sites
As if 50 weren't enough, add the same again to constitute The Times favourite 100 sites.

50 Essential Travel Websites - The Guardian UK
The web has transformed how we plan, book and research our travel, but the best sites can still be hard to find. These are The Guardian's favourites.