30 Passive Income Ideas You Can Use to Build Real Wealth

#20 User Testing

Data is everything in the tech world. And having valuable human insight can uncover new tactics and strategies for companies to sell to users.

One of the most effective ways of gathering that kind of information is through user testing. User testing lets brands gather real-time human feedback on their products and websites.

This feedback helps companies make changes to their products in order to improve customer experience (and increase sales).

Brands benefit from the data you give them, and you benefit from the extra cash you pocketed just for reviewing their stuff.