Flow Studio by Wia - Where people and things go to talk
iotlist - Discover the internet of things
Blockchain Demo - Visual demonstration of blockchain technology
Fieldbook - Create a database, as easily as a spreadsheet
Blockchain Startups Map - Map & searchable database of 430 companies in 64 categories.
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.