I often try to write about things that I think will be of use or interest to others in the OSR. Other times I try to write something about my own ongoing projects or gaming trials and tribulations. Occasionally, I'll post something as a means of recording it for my own future use.
This post falls into the third variety. Al, who hangs out somewhere on the other side of the Black Gate, made a compilation of all of his articles regarding megadungeons. As a fan of his and of megadungeons, I had to link to it.