Lets you choose your Backend Language for your complete Backend, also if your Frontend is using another Lang (including Multisite)
Add Google AJAX Translation to your blog. This plugin allows your readers to translate your blog posts, pages, or comments into 52 languages.
Links Chinese characters to the MDBG Chinese dictionary, allows conversion of pinyin tone numbers to tone marks and pinyin to pronunciation examples.
CGML (Celogeek Multi Languages), It’s a plugin that allow you to link many blog in different language together.
WP Yamli allows blog editors and commenters to write Arabic spelling text in English or French and Yamli will convert them.
Provides links to different automatic translations from the sidebar
Substantially increase performance of localized WordPress by caching the translation (l10n) object. Supports multiple languages.
*WPGoogleLangTransliteration Plugin offers Complete language transliteration support for your wordpress blogs.*
Lets WPMU user to select language in backend administration panel.
Automatically sets up the WP language environment based on first part of url. Will setup XML lang attribute + $locale variable.
Display different content from within a single post or page based on a user's language or version selection. NOTE: COMMA DELIMITERS HAVE BEEN CHANGED
Translate This is a WordPress plugins that allows users to translate their posts and pages directly from the input form.
Manages human translated blogs and allows you to administrate, create contents and moderate comments in your native language.
Allows running multilingual WordPress sites with zero management. Automatically creates and updates translation when you edit.
Translation widget that appears in your blog's side bar. Readers can translate your blog into 10 different languages, automatically in one click.
Globally translate your jQuery UI Datepicker instances.
Gengo is a full featured plugin that provides multi-language blogging for WordPress 2.5+.
wp slug will set slug by translate title to english with google translate or pinyin.
Translates posts and pages from Danish, Swedish and English to Danish, English and Norwegian (options depends on base language) by redirecting to gram
Helps you create links between equivalent (but different language) pages between WordPress installations.