Huffington Post
Arianna Huffington was married to a conservative Republican member of the US House of Representatives from CA. He lost a race for the US Senate, divorced Arianna and she became a liberal Democrat, from whose angle the Huffinton Post is slanted. Having said that, many see the Post as the way that newspapers are going, but haven't yet reached. Either way, it is worth looking at and comparing to the standard online editions of newspapers.