Well maybe love is too strong of a word. I know, I know us Americans use love too often.  Okay well I really enjoy Safari Books Online.  Just today another computer tech and I were having a conversation on DNS.  He recommended two books to me about DNS.  I was immediately able to look up the books using my Safari Books Online account.  Now granted Safari Books Online is not always up to date with the latest books, but they have a lot of great books on all areas of computer technology.