I recently posted on statements from the US Conference of Catholic Bishops on the issue of health care reform. The Conference has now set up a page dedicated to the issue. It's a good source of information and guidance.
Reach out to the people of Haiti with health care, education and community development through the St. Boniface Haiti Foundation.
Year of Faith
Begun on October 11, 2012 (the 50th anniversary of the opening of Vatican Council II) the Year of Faith highlights the New Evangelization, reproposing the gospel message to all peoples. Click on the logo above for more information.
The best place to start is always one of your local Catholic churches. Drop in some Sunday and see what's going on. Then you might speak to the pastor or someone on the parish staff about how they can help you and respond to your questions.