Interview Cake's Array and string manipulation

Merge meeting times, Reverse string in place, Reverse words, Merge sorted arrays

The Intelligent Investor by Benjamin Graham

Intelligent investing takes a long-term, risk-averse, value investing approach to the stock market.

The Millionaire Fastlane by MJ DeMarco

How starting a business is the fastest way to build wealth.

Josh Pigford, Baremetrics, $70k/month

What is the product? Subscription analytics and insights. What is its current revenue? $14k/month after 6 months, $70K/month in 2017, $120k/month now. What is the business model? Subscription. How did the founder come up with their idea? Was running 2 other SaaS products in the survey space and needed these...

Garrett Dimon, Sifter

What is the product? Bug tracker for small teams and non-technical people. What is the business model? Subscription. How did the founder come up with their idea? Was doing a lot of consulting work and found one of his biggest struggles was getting his non-technical clients to participate with the...

Chris Chen, Instapainting, $32k/month

What is the product? Custom painting by actual artists, delivered to your shipping address. What is its current revenue? $32k a month. What is the business model? Direct sale. How did the founder come up with their idea? Raised money from YC after YC, spent about 2 years pivoting and...

Chris Oliver, GoRails, $15k/month

What is the product? Education site for Ruby on Rails developers. What is its current revenue? $15k a month. What is the business model? Subscription. How did the founder come up with their idea? Was working as a Ruby on Rails consultant for many businesses and startups. Got tired of...

Jason Grishkoff, SubmitHub, $50k/month

What is the product? Allow musicians to connect with industry professionals. What is its current revenue? $50k a month. What is the business model? Free/premium credit. How did the founder come up with their idea? Found Indie Shuffle blog that features good indie music. Realized that the more content on...

Eric Zhang, Scalable Press, $100m/year

What is the product? Efficient custom printing on demand - lower cost, better quality, better turnaround time. What is its current revenue? $100 millions a year. What is the business model? Manufacture. How did the founder come up with their idea? Had a friend, Raymond, who sold T-shirt online. He...

David Hauser, Grasshopper, $32m/year

What is the product? Virtual phone system. What is its current revenue? $32 millions a year. What is the business model? Subscription. How did the founder come up with their idea? Could not find a good solution for handling inbound calls professionally. Started right away, developed the software started selling...