We know this, of course, but it's nice to be reminded of the physical filaments that afford our digital connections. In an article in Fortune (which is, ironically, not online), the writer Andrew Blum and the graphic designer Nicolas Rapp joined forces with telecom data company GeoTel Communications to create a series of visualizations of the Internet. Not its content, but its infrastructure. "Most people have no clue what the world's communication infrastructure looks like," GeoTel CEO Dave Drazen told Mashable of the project. With the company's renderings -- based on data collected largely from carriers themselves -- "you're actually mapping the Internet right here."