The Savage Garden is definitely a good book, but as rattler pointed out, it has quite a few flaws and errors. I didn't buy this book until after about a year of growing Nepenthes. I gathered all my information online through web pages and forums such as this one. I noticed some of the cultivation information provided in the SG is erroneous, but this could also be due to the fact that the book was written some time ago and more and more information is becoming available about CP's. Also, as Tropics pointed out, Peter D'Amato suggests cultivation tips that work for him in his climate, but may not necessarily work for others. Either way though, I bought the book because I like the pictures provided and some of the information can be useful. I just wouldn't rely solely on it as a bible (it is a good place to start).
I started on this forum by reading through hundreds of posts about everything in general. It took a lot of time, but it was worth it in the end, because I got to catch up with a lot of the wisdom the long time growers here have imparted. Google was and is, definitely my friend in cultivation tips for CP's.