The Chafetz Chaim (as prepared by Rabbi Eliezer Kwass) explains that Yosef's very clear means of identification of himself will be how God will reveal Himself in Messianic times: link
R. Michael Rosenweig looks at the process of teshuvah in the reconciliation between Yosef and his brothers: link
R. Asher Brander looks at Yehudah's actions as the reasons why all Jews, except for Kohanim and Leviim, are traced back to Shevet Yehudah: link
R. Yitzchak Etshalom analyzes Yosef's control., intent and what caused him to lose control over his emotions. This article should be read in conjunction with articles by R Yaakov Medan and R Yoel Bin-Nun: link
R. Jonathan Sacks focuses on Yehudah's process of teshuvah as a model for Baalei Teshuvah: link
R. Yaakov Medan compares Yosef and Yehudah in light of their respective roles and Moshiach Ben Yosef and Moshiach Ben David: link
R. Yaakov Horowitz explains how the brother became emotionally comfortable at speaking with and to Yosef: link
R. Berel Wein focuses on the reconciliation between Yosef and Yehudah as an integral part of a national process of reconciliation: link
R. Yaakov Haber explains that the secret of Jewish unity is diversified unity: link
R. Leibel Lopoliansky explores the way that Yosef related his role in Egypt to his brothers: link
R. Yissachar Frand explains why the reconciliation between Yosef and his brothers was incomplete: link
Dr. Gilad Sasson investigates which of his brothers Yosef took along for the meeting with Pharaoh: link
The Beginnings of Galus Mitzrayim
R. Shlomo Wolbe zt"l deciphers the meaning of Yaakov Avinu's response to Pharoh about his age: link (DOC)
R. Herschel Shachter explains the meaning of the concept that when the Jewish People are in exile, the Shechinah is also in exile: link
R. Zvi Sobolofsky discusses why Galus Mitzrayim is the model for all subsequent exiles: link
R. Avigdor Nevenzahl investigates the relationship between exodus, assimilation, redemption and large scale Torah study: link
R. Shlomo Riskin sets forth how Yaakov's departure from Eretz Yisrael fulfills the Covenant of the Pieces: link
Special Channukah Treat
R. Asher Weiss, in a shiur given at Gush, analyzes the halachic requirement of "One Light for a Man and his Household": link