WorldLex is a collection of word frequencies lists collected for 66 languages ! (French, English, German, Japanese, Norwegian, Danish, etc.).
Usually the corpora are quite big (84.2 million words for French for instance).

FrenchChineseTurkish
EnglishHindiKorean
GermanArabicPunjabi
DutchRussianetc.
SpanishJapanese
ItalianTelugu
PortugueseVietnamese
etc.etc.

WorldLex is giving for all these languages :

  • Twitter frequencies
  • Blogs frequencies
  • News frequencies

You can download these lists on the WorldLex website again !