I encountered the image to the left in the most recent edition of Technology and Learning and located it on the web. As T&L commented, the image is “being touted as one of the best visual depictions of the Internet’s evolution.”

The image is worth a look for an idea of several ways in which the web may evolve over the next several years. Image is attributed to RadarNetworks and Nova Spivack.

More importantly, quick web research identified this July 3rd CNN article which provides an overview of the semantic web concept.