[dthal]

I've heard good things about oshpark[1] for hobbyists, but I personally have never used them.

[1] https://oshpark.com/

[pathartl]

I use OSH regularly for prototyping. Their boards are really good quality and I've been happy with them. Sometimes the production times aren't as fast as I'd like, but ordering quantities of 3 usually is very economical.