https://temboo.com/ – Great platform for fast IoT prototyping
http://www.libelium.com/ – Innovative European IoT sensors and gateways company
https://www.thethingsnetwork.org/ – Global Open Source IoT network and community
https://dzone.com/iot-developer-tutorials-tools-news-reviews – great source of interesting news about IoT
https://staceyoniot.com/ – Very good blog about all flavours of IoT
https://nodered.org/ – Great tool for easier programming for IoT
https://developers.mydevices.com/cayenne/features/ – First drag ‘n drop IoT platform
Books that we recommend
http://amzn.com/0692739009 The Amazon Way on IoT: Great book, and also not very long with lots of useful information and easy to grasp tips.
http://amzn.com/1119285666 Building the Internet of Things: Solid book about IoT, a bit boring sometimes, but a lots of useful information, especially for IoT novices
http://amzn.com/0887307280 The E-Myth Revisited: Great book about how to to succeed in your path as an entrepreneur
http://amzn.com/0345472322 Mindset: The New Psychology of Success: Excellent book with a simple theme about fixed and growth midset but packed with tips and real life examples.