1. Can anyone recommend any good books on beginning Ruby on Rails? I have good general programming knowledge (I can do ASP/ASP.NET/PHP etc) but I've never used Ruby and I want to add it as another string to my bow.2. How come RoR has taken off so much with startups? Admittedly I can only name Justin.tv and Twitter off the top of my head right now, but it seems to be the startup language of choice at the moment. Why is this?