The population of earth fell into "ecological debt" with the planet yesterday. "The date symbolised the day of the year when people's demands exceeded the Earth's ability to supply resources and absorb the demands placed upon it." In 1987, ecological debt day fell on December 19.
Steven Johnson's thoughts on Web 2.0. He compares it to a rain forest, with the information flow through the web being analogous to the efficient nutrient flow through a forest. "Essentially, the Web is shifting from an international library of interlinked pages to an information ecosystem, where data circulate like nutrients in a rain forest." Compare with Tim O'Reilly's recent thoughts on the subject.