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Vast quantities of data are freely available on the Web, and it can be a potential treasure trove for many businesses--providing they can figure out how to use it effectively. IBM hopes that a new tool, called BigSheets, will help users analyze Web data more easily. The company has developed a test version of the software for the British Library.

Facebook, the most popular social networking Web site in the world, was founded in a Harvard dorm room in the winter of 2004. Like Microsoft, that other famous technology company started by a Harvard dropout, Facebook was not particularly original. A quarter-century earlier, Bill Gates, asked by IBM to provide the basic programming for its new personal computer, simply bought a program from another company and renamed it. Mark Zuckerberg, the primary founder of Facebook, who dropped out of college six months after starting the site, took most of his ideas from existing social networks such as Friendster and MySpace. But while Microsoft could as easily have originated at MIT or Caltech, it was no accident that Facebook came from Harvard.

Say you're an investor and you want to see how two companies are faring against each other on the market. You could type in "IBM versus Apple" and Wolfram|Alpha will generate graphs and tables to compare the stocks over time. It also give you the Web-based sources used to generate the data, so you know where the numbers are coming from. The site also solves equations and shows the steps it took to do so, which will be of interest to high school students and math majors. Not into number crunching? If you live near the coast, you could type in "tides in ____" and find charts of tidal and lunar information. You could also graph that against other cities, which would be cool if you're a surfer. The site is also interesting for academic queries. Type in "Internet users in Africa" and you'll get the total number of Web users there - 51 million - as well as lists of the number of users by country plus graphs of this information. If you're in the fisheries business, or if you're an environmentalist, you could type in "fish produced in Italy versus France" to get an idea of how that sector is faring. The answer includes specifics, like how much of the fish crop was farmed versus what was captured. Such data could be used to argue policy points or to debate whether or not certain industries are sustainable.