Have you ever wanted to experiment with a WordPress plugin or theme, but didn’t want to muck with your main site (or pay to host a public test site?) I was just playing with WordPress the other day, and really wanted to have a private instance that I could fearlessly make changes to. And I found this:
This is a private WordPress instance on your machine that works literally out of the box! Seriously, I downloaded it, loaded it into VirtualBox and started it, and was immediately able to hit the url of the guest IP address and work with the WordPress instance.