The dot-com boom and bust is often compared to the Gold Rush. But Amazon.com founder Jeff Bezos says it’s better compared with the early days of the electric industry.

Jonathan Harris wants to make sense of the infinite world on the Web — so he builds dazzling graphic interfaces that help us visualize the data floating around out there. Here he presents “We Feel Fine,” a project that scours blogs to collect the planet’s emoti(c)ons, and the “Yahoo! Time Capsule,” which preserves images, quotes and thoughts snapped up in 2006. And he premieres “Universe,” which presents current events as constellations of words — a tag cloud of our collective consciousness. http://universe.daylife.com/

Carnegie Mellon Professor Randy Pausch, who is dying from pancreatic cancer, gave his last lecture at the university Sept. 18, 2007, before a packed McConomy Auditorium. In his moving talk, “Really Achieving Your Childhood Dreams,” Pausch talked about his lessons learned and gave advice to students on how to achieve their own career and personal goals.