[rick3000]

The Bentley is great to have on hand, it covers a lot of less common things you will not be able to find online. That said it can lack detail and clarity, but nothing else comes close to competing with it. The Bentley is a must have in my opinion.

Almost all of the information in the 101 Projects books is available online from the books website, and has additional pictures. Between the Bentley manual and a google search you should be covered 90% of the time.

The service manual PDF's available online can be a good a resource, but you have to be aware that they are constantly updated and a lot of the copies floating around the net are incomplete or outdated. That said they contain some diagrams you won't find anywhere else. Now if only someone would release a book with every torque spec.