Thanks, papsosouid. Facts are much more useful to discussions like this. It still doesn't change the fact that PHP is capable of running the most trafficked sites in the world (side note: I don't like PHP, either. I just hate haters who can't see the world in shades of gray). Having heard Facebook engineers speak about MySQL many times, I have not seen any inclination that they are dissatisfied with MySQL as a platform choice. (And please, no one reference on that utterly BS article published on gigaom.com)