It intersects with similar services like Instapaper's content shares, but there's no obvious automation component. It's old-style human curation with links to the original source.
It's good curation - pretty much everything they show today is interesting to me. Unfortunately, I've already read most of the referenced articles. It's hard to see how they can make money; a GigaOm review says they're considering charging subscribers. That's a tough one, though I wish them well. It's hard to compete with free, but perhaps free will go away (it happens) and they'll find a niche.