This software development kit (SDK) provides programming reference and how-to topics for getting started with the Bing Maps REST Services, in the form of a PDF file. (... or in the form of a CHM file.)
Did you see the page for the last entry?
Yeah, there's 366+ pages in the PDF, up from 151 in last year's (Bing SDK updates, Spatial, SOAP, Rest and AJAX Control.)
Related Past Post XRef:
Using the Bing Maps WPF control to build an, "OMG, was that an earthquake...?" app
Bing SDK updates, Spatial, SOAP, Rest and AJAX Control.