Actually the book covers both apache and nginx equally so you should be straight. Although I must recommend that if you have a choice then you go with Nginx. Nginx is much more scalable and ues much fewer resources then apache does. The only reason to use apache with a Rails deployment is if you have other legacy sites to support that run on apache. If you are just deploying a Rails/Merb app then Nginx is far superior in every way.
Hey Ezra, what are your thoughts on Litespeed? I never hear anyone talking about it, but I've found it extremely easy to deploy Rails apps on it (though I've never done so with a high traffic site). Do you cover Litespeed in the book, at least as a comparison to others?
I like lightspeed but the free version is crippled and only usable for smallish sites. The real version costs a lot of money but is pretty nice. But it not being open source makes me personally cringe ;)
Lightspeed is nice for smaller sites because the processes can go away when there is no traffic. But I'm not a fan of it much and it's not covered in the book.
