So, it's no secret (or if it was, it's not any more) that we run Rails to provide the lion's share of our web content. Until recently, we've been pretty much exclusively using nginx + a cluster of mongrels to do this.As a SysAdmin, I'm required by law to occasionally say, "That won't scale!" (even if it will). However, as someone who really digs the Rails platform, and is constantly hearing all of the FUD...