Colin Keeley

Buying and building wonderful internet companies

Mark Leonard (Constellation Software) Operating Manual

The ultimate business breakdown of Mark Leonard and Constellation Software.

The Ultimate Vertical Software Operating Manual for 2025

Everything you could want to know about starting, building, and investing in vertical software companies

Be Default Greedy

Greed is good. A manifesto for founders in the current age.

Double Your Profits: In Six Months or Less Book Summary

Hard Lessons Learned Scaling a Startup in Year 1

How to Structure a Holding Company to Pay 0% in Taxes

Your Air Quality is Killing You. How to Fix it.

Everything I've learned about indoor air quality with devices and actionable tips.

Bryan Johnson's Diet & Recipe Guide: $2 Million a Year to Be 18 Again

Everything Bryan Johnson eats from food to supplements and uses in a day to become younger every year.

We Changed Our Name! Here is How & Why

How to Pick a Great Startup Name & Domain

How I Built & Launched a Latin American Recruiting Company

Why launch a Latin American recruiting firm and why US companies need to hire there.

7 Surprising Latin American Hiring Tips From 1,000+ Interviews

What we've learned from 1,000 Latin American interivews