Via Digg comes a download of Google Hacks, 3rd edition [ZIP]. Unzip this to find a Windows help file containing all 100 hacks dividied into 8 chapters.
Hat tip to Philipp
EDIT: Actually this looks a little suspicious considering the book is still for sale on the O’Reilly site. Link removed to the direct download for now until Philipp gets an answer back from them. I think we may have a new linkbait technique – the illegal download hook ;)