If you are a PADI dive professional, or are considering being one, you may be interested in the 2010 Digital Instructor Manual. PADI graciously posted it online for free, allowing anyone, not just instructors, to access it. If you are interested in taking the instructor exam this year, this is great news since it saves you the money it used to cost to buy the manual.
The new version of the manual contains all the standards but not all the details on how to teach the courses that used to be in the manual in the past. Those are now in separate guides instead.