AFAIK, most companies don't advertise much about internal systems, but, maybe that's just because I'm from Indiana <g>.

But, if you want to see VFP in action, the following websites, I understand are using VFP to render websites -- some sophisticated apps and high volume capacity among them:

UT
www.westwind.com
www.egghead.com
www.stevenblack.com -- WIKI