United States Conference of Catholic Bishops (USCCB), and it is definitely worth a look.
In many ways, Archbishop Dolan is the new face of Catholicism in the U.S. He is grounded and very personable, yet articulate and unapologetic about the Church's timeless teachings and beliefs. If you don't know much about him, here's a great chance to get to know him.
UPDATE: I tried to embed the video, but it wasn't working so well. Instead, here is a link to view it.