AltaVista Babel Fish translates Chinese, Dutch, English, French, German, Greek, Italian, Japanese, Korean, Portuguese, Russian, and Spanish.

FreeTranslation translates Chinese, Dutch, English, French, German, Italian, Norwegian, Portuguese, Russian, and Spanish.

Google translates Chinese, French, German, Italian, Japanese, Korean, Portuguese, and Spanish.

Danish, English, Esperanto, Norwegian, Portuguese, and Swedish.

Systran translates Arabic, Chinese, Dutch, English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Swedish, and Spanish.

Translate.pl translates English and Polish. The user interface is in Polish.

Translate.Ru has a user interface in Russian, English, German, French, and Spanish. It translates these languages, Italian, and Portuguese.

They are also planning an Online Dictionary.

WorldLingo translates Chinese, Dutch, English, French, German, Greek, Italian, Japanese, Korean, Portuguese (Brazil), Russian, and Spanish.