Abstract: In today's web, it's straightforward to publish in any single language. The cool Web 2.0 sites are organised around user-supplied content: postings, tags, comments, photos, videos. But what happens when you try to do all that in more than one language at a time? Do you translate the user-supplied content? And how? Can you crowdsource the localisation? This talk looks at the business, technical, and design issues of multilingual web sites. We'll look at role models, examine social translation, see how technologies like Joomla, Drupal, WordPress, HTTP, and URLs fit in. Get inspired to add another language to your site!