It's more a news aggregator than an online newspaper.
And with websites in English, French, Spanish, Italian, Japanese, German, Portuguese, and Korean, fed from newspapers from the respective conutries. Additionally, many bloggers contribute on a wide range of topics.
In USA, they've got local editions as well, starting with the HuffPost Chicago
and HuffPost New York
in 2009. (HuffPost San Francisco
since July 12, 2011.)