37signals (Jason Fried)

Q: Why do you have a Brutalist Website?
A: I see it more as a letter, not a web site. It just happens to be on the web. Also, re: "In its ruggedness and lack of concern to look comfortable or easy"... For me it's all about comfort and ease - especially when it comes to reading. I don't consider our site rugged any more than a simple letter is rugged.

http://37signals.com