The url to Teespring in the header is broken: "Editor’s note: Evan Stites-Clayton is Co-Founder at Teespring. Eric Koslow is Lead Developer at Teespring." =>

The url to Teespring in the header is broken: "Editor’s note: Evan Stites-Clayton is Co-Founder at Teespring. Eric Koslow is Lead Developer at Teespring." => hhttp://www.teespring.com/ http://www.teespring.com/