First, take some time to listen to local saint Fr. Michael Morse’s Maundy Thursday sermon, posted on the Center for Theology.
Then, take some time to read pope Benedict XVI’s homily for Holy Thursday.
For the history and liturgical meaning of Good Friday, go to New Advent’s entry on the subject over at the Catholic Encyclopedia.
Mark Galli, at Christianity Today, maintains that living into Christ’s anguish on the cross is good for the soul, arguing that we can be thankful when God forsakes us, for the experience of his absence is equally as powerful as his presence.
Peter J. Leithart, over at First Things, provides a poetical-theological reflection on the cross.