I have no idea what those brands stand for...I don't associate them with anything other than something probably related to the word... when I think I need a hotel I don't think go to hotels.com I think go to price line or kayak.
branding is much more than just being associated with a category. It is about how people perceive your brand. I cannot tell you anything about those brands other than they do something related to that category...
Here is a good contrast, "I associate Southwest Airlines with Cheap, No Frills Flights." I don't know anything about those brands... the name doesn't tell me anything about WHY I SHOULD BUY FROM THEM.