4) As you might expect, there has been a lot of good stuff written on the Akedah. I have chosen several pieces that I have enjoyed, each from a different genre of Torah analysis:
a) Read R. Yitzchak Ethshalom's textual analysis of the Akedah, in his Between the Lines of the Bible: Genesis, here.
b) Read Rav Shagar's analysis of the midrashim related to the Akedah, in his Faith Shattered and Restored: Judaism in the Postmodern Age, here.
c) Read Kenneth Seeskin's philosophical summary and brief analysis of the Akedah, in his Thinking About the Torah: A Philosopher Reads the Bible, here.
d) Read Rav Soloveitchik's homiletic analysis of the Akedah, in his Abraham's Journey: Reflections on the Life of the Founding Patriarch, here.