Literacy with ICT

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Many of the sites listed here were not available when we did our last list; although longevity is a mark of pride online, it is difficult for companies set up in the 1990s to reinvent themselves quickly enough to take advantage of new technologies. Although of course rapid change brings casualties too: it's possible that with all the economic turbulence going on that some of the sites here won't be around in a year from now, or that their now free services will have become paid-for. That doesn't diminish their usefulness, though; it just underlines their determination to survive.

A walk through mathematics! A film for a wide audience! Nine chapters, two hours of maths, that take you gradually up to the fourth dimension. Mathematical vertigo guaranteed! Background information on every chapter: see "Details".