Some websites where you can find detailed exegesis of this week's gospel passage:
"The Sheep and Goats," Gospel Analysis, Sermons from Seattle, Pastor Edward F. Markquart, Grace Lutheran Church, Seattle, Washington. Detailed background and exegesis.
Exegesis, Christ the King/Reign of Christ, by Richard Donovan at lectionary.org
Exegetical Notes by Brian Stoffregen, at CrossMarks.
"Come, You Who Are Blessed," Jerry Goebel, One Family Outreach. "Focus on scripture from a justice perspective." Exegesis, study, and teen study and activities.
Also, don't miss "The Image of Sheep and Goats in Matthew 25:31-46," Kathleen Weber, The Catholic Bible Quarterly, 1997 for background on the sheep & goats image.