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"There are over\u00A054 million\u00A0WordPress sites in the world, and that number is split between the free WordPress.com service and WordPress.org open source installs. Both options have their ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/insider/2012/07/27/jetpack-the-bridge-between-wordpress-com-and-self-hosted-blogs-hits-2m-downloads/>