Have you been to iot-analytics.com yet? Unsurprisingly, it's a website dedicated to analyzing (and sometimes, analyzing 3rd party analyses) the IoT, M2M and related industries, and from what I've read so far, it's pretty good. I generally despise industry hype (and in fact I've written more than a few articles on our Digital Signage Insiders blog about the ridiculous hyperbole that permeates that industry), and it seems as if IoT Analytics will continue that trend, though with a bit less snark. It seems their MO is to sell research reports (or perhaps do bespoke research for your firm before it starts its next IoT project?), but they seem to publish a fair amount of data on the website for free, which gives the rest of us a window into some areas of the market that we might not otherwise know much about.