For years, there has been little competition in the business of enabling people to find out things on the web: Google led and a bunch of its would-be rivals lagged behind. Suddenly, however, internet search is becoming lively again.
Next week, Microsoft will launch its latest effort to catch up with Google – a refreshed search engine codenamed Kumo. Meanwhile Yahoo has just shown off its own efforts to help people extract data from the internet’s millions of web pages, rather than wade through it link by link.

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