Bishop Robert Barron’s homilies from Word on Fire Catholic Ministries.
Sunday Connection (from Loyola Press) is particularly recommended for families involved in Family Faith Formation.
Scott Hahn’s Sunday Bible Reflections -- Dr. Hahn is a Catholic theologian and author, founder of the St. Paul Center for Biblical Theology.
Biblia Clerus is a Vatican site which provides access to a huge, rich, searchable, and downloadable collection of commentary and exegesis, both contemporary and patristic.