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The Economist on social networking.

Polar Rose grew out of computer vision research - the analysis of digital images and video - at the Universities of Lund and Malmö in southern Sweden. We are currently a team of twenty-two, including computer science graduates, mathematics and physics Ph.Ds, a user interface designer, and a technology-fascinated economist on off-roads. We believe that we have superior technology which will give meaning to digital photos and allow these to be indexable just like text documents on the web are today. We work on friendly, fun, useful and transparent applications, that use computer vision technology to sort and add context to the photo web.

Re http://groups.diigo.com/Diigo_HQ/forum/topic/diigo-screen-savers-xgrid-and-boinc-distributing-the-load-7387#3 I wonder whether Wuala is comparable to TFS.

If you've spent time on Facebook, you might be mystified by all the people tending to their virtual farms and virtual pets. I know I am. Not only does this seem a strange way to spend time, but here's the even weirder part: a lot of these people are spending real money to buy virtual products, like pretend guns and fertilizer, to gain advantage in these Web-based games.

out that K-12 education accounts for 0.2 percent of the research and development expenditures in the U.S., a fraction of what is spent in the pharmaceutical industry, which is also highly regulated. A low-cost, rigorous, and rapid way to conduct randomized trials in schools would help education innovate at a rate similar to that of the general technology industry, where products are put in front of users early and often and companies are in a constant state of change, the paper argues. Though that's what could make the public nature of the results a hard selling point to entrepreneurs.

An experimental matrix of Web 2.0 mashups.
Usage: Hover the cursor over any cell in the matrix. A small box gives details on mashups for that API combination. Top links in hover box bring you to that API's reference page. Links in body of hover box take you directly to the mashup. Not all combinations have mashups & only those with the 'º' indicator currently have entries. Cells at the intersection of same API (ex: Amazon+Amazon) list any other examples for that API.

Note that there are two views into the matrix: the default view shows only those APIs for which mashups have been added to the database. The second view shows all APIs regardless of whether there's currently a mashup registered. It's big. Definitions: What is a mashup anyway? As always, it's good to check Wikipedia's definition, but essentially a "mashup" is a web-based application built through (creative) combination of data from multiple sources. Often, but by no means always, this data is retrieved by using a vendor's API such as those listed here. (An API? Also at Wikipedia.) Some recent press may also help explain: BusinessWeek's "Mix, Match and Mutate", The Economist's "Mashing the Web". Background: This is an experiment. It is intended to be both a reference point and also a visualization. What you see here today will change both in content and form shortly. I am quite interested in seeing the 'space' in which mashups exist. Clearly, some APIs such as Google Maps, appear to be more widely used than others. UI Issues: Cross-browser support is good but not complete. Sometimes it can b