Marco Arment was the lead developer on Tumblr, then left to found Instapaper.

Follow the link for Marco’s take on long form publishing.

Skimming fluffy articles and social timelines all day is like eating junk food all day. Eventually, you feel horrible, burn out, and just want something real. After decades of evolution, experimentation, and testing, web producers have honed the formula for addictive junk content to perfection. We have infinite junk available to us on demand, on any subject, from small rectangles available in our pockets, all day, every day.