Believe it or not, not all websites become as good looking and easy to use as this one overnight. They require careful planning, design and then testing for errors. Even then, the original design team don't get it right every time. The people who make major new websites often go looking for someone to test them, click all around them, look for bugs and give their honest opinions.
This might be a very dull job, depending on the content of the website you're looking at, but it's one that pays well. We're talking $10 for each 20 minutes of your time. Plus, you don't even have to be nice; if the website is awful just tell them so, they do back to the drawing board, and you still get paid anyway! UserTesting.com, UserLyrics.com and TryMyUI.com are just three of the many sites who are constantly accepting applications from people who want to spend their time this way.