Thanks to a former student, I have been trying new Digital Fitness app from PWC. During the pandemic, they are making it free for anyone wanting to better understand the changing technologies and other issues in business.

Once you setup an account, the app guides you through a quiz to determine your digital aptitude. Then based on your score it puts you on a Fitness plan. You improve your score by reading short article or watching videos on various topics from environmental impacts, basics of the blockchain and project management. The articles I have read have been quite informative and interesting.
To sign-up, go to https://www.pwc.com/us/digitalfitness . If you need a code to signup, use LRNALL.
Start improving your digital fitness 2 minutes at a time.