Mozilla Foundation, head of state for webdeveloper’s most wanted browser platform, the flamy foxy, is using wordpress as their blogging platform. Did I mention their nice webdesigns they use on their site since ages?
Mozilla has a long tradition in choosing open source frameworks and platforms for their diverse web-based sides of the project, be it the Wiki, Bugtracker or Blog. Slap my face for not mentioning the Add-Ons repository. Diversity pays (little wink mit dem zaunpfahl addressing the wordpress project).