The United States Catholic Conference of Bishops (USCCB) is plugged into the digital age through their website, Facebook page, Twitter, and YouTube. You can access lots of great information, resources, and reflections through their website.
The daily Mass readings are available along with an audio and video reflection on the readings. There are sections on what Catholics believe; how to get involved in social justice, and prayer and worship. A link to the Catholic News Service will help keep you up to date on national and world issues from a Catholic perspective. You can learn more about the Year of Faith proclaimed by Pope Benedict XVI beginning on 11 October 2012 which is the 50th anniversary of the opening of the Second Vatican Council.
Spend some time exploring the official site of the U.S. Catholic Bishops!