Wifi that stretches for miles

Helium provides a communication network using hotspots that people install in their homes.
As a hotspot owner you earn helium tokens – a cryptocurrency – for providing coverage.
There are now about 5,000 hotspots in the world, providing full coverage in most major US cities.
So far, the Helium network has been used for tagging/tracking devices and also smart water meters, among other applications.

What is affiliate marketing and how to use it to make money or increase sales?

Affiliate marketing allows you to get paid a commission when you link products from your website or social media accounts.
Many companies have an affiliate program, including Amazon, that is easy to sign up for.
I set up an Amazon affiliate account and made videos for two products I like to see how it works. Here is what I learned.