Kevin Rooke | Technology, investing, and more...

How To Make Money Online

How To Sell an E-Book on Gumroad

How Daniel Vassallo made $97,000 selling an e-book he wrote in just a few weeks

How To Build a SaaS Product

How Yannick Veys and Samy Dindane grew Hypefury from $0 to $6,700 of MRR in just 6 months

How To Sell Used Books with Amazon FBA

How 'Romer the Roamer' built a $350,000 used book business from scratch with Amazon FBA

Book Recommendations

Explore the books recommended by the world's top investors, entrepreneurs, and thinkers

Books Recommended By

Richard Branson

Travis Kalanick

Mark Zuckerberg

My latest thoughts on technology, investing, and more

Your savings account isn't a passive income stream. It's a monthly expense. Banks are draining your wallet every day, because they can.

Your Bank Account Pays Negative Interest

Your savings account isn't a passive income stream. It's a monthly expense. Banks are draining your wallet every day, because they can.

Tesla superchargers are great EV chargers, but slow compared to gas pumps. So how did Tesla disrupt the gas station with an inferior product?

The Genius of Tesla Superchargers

Tesla superchargers are great EV chargers, but slow compared to gas pumps. So how did Tesla disrupt the gas station with an inferior product?

Facebook made over $139 from the average North American user in 2019, and the actual cost to each user is roughly 10-20x higher than that.

The Cost of Social Media

Facebook made over $139 from the average North American user in 2019, and the actual cost to each user is roughly 10-20x higher than that.

Amazon's ad business is larger than YouTube. Amazon's subscription business is almost as large as Netflix. And that's not all.

Scaling Amazon Subscriptions and Amazon Ads

Amazon's ad business is larger than YouTube. Amazon's subscription business is almost as large as Netflix. And that's not all.

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