Atlantic Wire
Former Huffington Post co-founder and current BuzzFeed founder/CEO Jonah Peretti explains the difference between the two Internet news startups:

I got excited about The Huffington Post. But after doing it for a while, it got exhausting. I started to get fatigued by partisan journalism and partisan reporting and columnists who have to be controversial: This is wrong, this is right. Being in the belly of the beast at HuffPo drained me.

That's why meeting and working with Ben Smith has been so refreshing. He just says, let's find out stuff that no one knows and get that information to the public.

Earlier: Why BuzzFeed as a real news site is no laughing matter (Poynter) | BuzzFeed to open D.C. bureau (Poynter) | Stephen Foley profiles "nerd-genius" Peretti (The Independent)