Drupal: With a strong community of developers, there are easy-to-use tools that can handle pretty much anything you can think of. Its underlying architecture is scalable, its API is robust, and Google loves Drupal; its SEO friendliness is well-known.

From a blog, to a news mogul, to a store-front, to a social network, to a university's portal site, Drupal can handle any of it. Just take a look at this slideshow:

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