iotlist - Discover the internet of things
Inside - Visual, omni channel customer engagement platform
Fieldbook - Create a database, as easily as a spreadsheet
The IoT List - A directory of all the best IoT resources and products.
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
Uniot - Uniot is an IoT platform that connects creators, people who create great devices, and enjoyers who want to leverage the great variety of devices.