Bruce Clay’s Search Engine Relationship Chart depicts the food web of search engines. According to this, the web of search engines is a bipartite graph. Can you guess which search engines are at the core of each connected component?

In Biology, a food web shows “who eats who“. Here the appropriate metaphor is “who feeds who”. It’s nature, red in tooth and claw, none the less. (Spotted on informationlab.org)

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