Does anyone know what websites professional photographers use to make their prints?

There are LOTS, but you will never go wrong with Mpix. It is used by pros and amateurs alike. It is a division of Millers Lab, the oldest lab in the country that works with professionals only.

http://www.mpix.com/

steve

A lot of professional photographers make their own prints. In fact, if it's a black and white photo, it might even be a traditional silver print they made in the darkroom. I just met a photographer on Thursday that works entirely with film and makes silver prints. His name is Brent Wood, look him up on Google. He's on the Board of Directors for Freestyle Photography in California, and the chairman of the Art Department at Victor Valley College. He definitely sounds like a professional photographer to me. And he makes all his own prints...including some really old and alternative processes, like something called "Vandyke prints."

Even with a digital camera, there are some photographers that use a digital enlarger. It works like a traditional optical enlarger, except that you connect it to a computer. It projects the image onto light sensitive paper, and you can make a color print that way. It looks a lot better than from a printer and will last a lot longer.

Most pro photogs don't use a web site to print their photos. They want more "hands on" in the process. They will find a lab close to home and take to photos there for processing and printing.

It's more expensive but the final result is much better.