The biggest motivation is not the money but the impact.
Much of the lifeblood of blogs is search engines - more than half the traffic for most blogs.
Simplicity not simplistic.
If you're building a startup or any sort of organization, take a few moments to reflect on the qualities that the people you most enjoy working with embody and the user experience of new people joining your organization, from the offer letter to their first day.
If you make the Internet, live on the internet.
A common quality I see of people who are successful is that they are voracious readers.