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"Wikipedia provides Internet users with millions of articles on a broad range of topics, and commonly ranks first in search engines. But its reliability and credibility fall well short of the standards for a school paper. According to Wikipedia itself, "[W]hile some articles are of the highest quality of scholarship, others are admittedly complete rubbish. … use [Wikipedia] with an informed understanding of what it is and what it isn't.""

A word tree is a visual search tool for unstructured text, such as a book, article, speech or poem. It lets you pick a word or phrase and shows you all the different contexts in which it appears. The contexts are arranged in a tree-like branching structure to reveal recurrent themes and phrases.

This website will help with what could students read over the summer holidays

Have you ever wanted to pick the brains of the smartest people in the world? It's possible! Check out these talks and lectures from some of the biggest thinkers in the world, and you'll boost your IQ by a few points. scroll down to this list

"A story about the Semantic Web "

Reputation management has now become a defining feature of online life for many internet users, especially the young. While some internet users are careful to project themselves online in a way that suits specific audiences, other internet users embrace an open approach to sharing information about themselves and do not take steps to restrict what they share.