The Next Web: WordPress.com is opening itself up to third-party plugins and themes. “The popularity of WordPress is in no small part thanks to its customizability. There are tens of thousands of third-party themes and plugins that make the ubiquitous blogging platform vastly more useful. Unfortunately, those who have chosen to host their site on WordPress.com are prevented from using them. But that’s about to change, as Automattic today announced that those with business-tier accounts on WordPress.com can now install third-party themes and plugins built by other WordPress users.” I am excited by this but I have a Premium account, which is the tier below Business.