Five decisive trends are driving changes in the media environment and forcing media companies to change their thinking and operations: media abundance, audience fragmentation and polarization, product portfolio development, the eroding strength of media companies, and a overall power shift in the communications process. Abundance is seen in the dramatic rise in media types and units of media. The growth of media supply is far exceeding the growth of consumption in both temporal and monetary terms. The average number of pages in newspapers tripled in the twentieth century; the number of over-the-air television channels quadrupled since 1960s--supplemented by an average of about fifty-six cable channels in the average home; there are four times as many magazines available as in 1970s; 1.5 million new web pages are created daily, and created and stored knowledge (as measured by information scientists) is growing at a rate of 30 percent a year. We used to think of competition among newspap