Paying Attention: Trailblazer is a new type of tool that enables you to track your browsing across the internet in 3D vs. a flat 2D list of sites visited. It’s designed to limit the numbers of tabs open on your browser at any one time, and to work as a tool to enable you to know not just where you went, but how you got there, as in thought process. Available as an add-on for Chrome browsers and currently in beta format.