Having finished our series on network centrality, we now approach its most natural complement: network clustering.
An easy way to appreciate the usefulness of network clustering is to try search engines that (unlike Google) are not centrality-driven. There are quite a few such search engines out there. They are great at providing a sense of direction within a previously unknown field --- when you're not yet sure exactly what question you're asking. In contrast, Google is better when your query is more specific, or when you just don't care about the rest of the forest, dammit, and want to find the biggest most popular tree ASAP.
Below are two examples of how non-centrality-based search engines display the WWW of "organizational network analysis". Click on either image to go to the search engine pictured.
There are dozens more search engines listed here by search engine junkie Bill Sebald.
I hope you enjoy the Un-Google world. Soon I'll say more about understanding this world with the help of network clustering.
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