I've had this book in pdf for a while now, but I noticed google books has a portion of it available online today. It's an excellent read that anyone that really wants to know what is going on and why things are happening plus a lot more should read. Plus it's a lot more referencable than a homebrew book, and slightly more qualified to.
Here's the google books link: Brewing: Science and Practice - Google Book Search
Now that is missing some parts, but if someone or even Tx would like to host the pdf for us or something, I could send it to someone to host. Of course I don't know how kosher that would be copyright wise. It's like a $300 text on amazon.