El Huffington Post, HuffPost's newest foreign-language edition, went live early Thursday. The Spanish-language site, based in Madrid, is helmed by former Spanish TV journalist Montserrat Dominguez (Editorial Director) and former editor-in-chief of Spanish daily newspaper Público Guillermo Rodriguez (Editor-in-Chief). Arianna Huffington and several US-based HuffPost staffers have been in Spain this week preparing for the launch.

Below, see behind-the-scenes photos from launch week:

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And for those of you who understand Spanish, watch below for an introduction to El Huffington Post: