Your favorite travel web sites?

What I would be really interested in knowing is what are travel sites to do feel the Best of the Best, that is, ones that you always use and rely on when planning travel. You can list them so that I may add up to my collections.
Thanks for your help.

Hi,
Try these people for quality self catering apartments in Cape Town. centurycityapartments They cater for corporates and families as well.
Ciao
Chris