AskHN : "Don't judge them by their website"

I was reading http://news.ycombinator.com/item?id=1145343 when something hit me : "don't judge them by their website" (talking about http://bowker.com/).

I was thinking about how people here often reject sites based of their look (it happened to me twice) but maybe are passing beside great services.

I was thinking about services I use and couldn't live without and if I judged them by their websites, I would have never given them a penny.

DIDWW : http://www.didww.com

PrgMr : http://www.prgmr.com

Callcentric : http://www.callcentric.com

TarSnap : http://www.tarsnap.com/

Lyrics (this one is from me ;) : http://lyrics.azankatech.com

Do you know other interesting sites that we shouldn't judge by their website?