I've been using Drupal since a while now. When I need a "community" or "journal" Web site, I use Drupal. (Don't say 'blog', please... Please don't. I hate the word.) A few of my sites are multilingual, hence I use the i18n module available on their site. It does require you to modify a few little things in the initial database and to apply patches on the source code, but it works. Also, after applying the patches, not only can you put links to switch languages, but also the URLs are simple: /en/ for English, /fr/ for French, etc. Plus, Drupal has a good API. That's why I like it so much.