Arianna founded 13 of the world 's most successful media companies , The Huffington Post , in two years ago . `` I was terrible , '' she said . She sold the company to The Huffington Post for $ 315 million 2005 . She describes herself as a `` sleep evangelist '' and obsessed with stress reduction .
Arianna founded 13 of the world 's most successful media companies , The Huffington Post , in two years ago . She sold the company to The Huffington Post for $ 315 million 2005 . She describes herself as a `` sleep evangelist '' and obsessed with stress reduction .