This book features 550 recommendations grouped by subject. These “best of” recommendations have been selected from the accumulated pool of 6 brief suggestions Kevin Kelly, Claudia Dawson, and I have sent out each Sunday for the past two years in a free email newsletter called Recomendo.
It's available as a searchable DRM-free PDF for $1.99, or you can buy a paperback copy on Amazon for 
Sample pages:
