A) Are we top-posting or bottom posting. I vote for top-posting.
B) I kindof agree about the Social Sciences bit, but part of _my_ filter is the list of extant undergrad "departments", hence a differentiation between Humanities and Sociology. Part of why I would parse them this way is that the intro letter or query letter I would write could well vary based on what kind of department I was writing. $.02
Regarding the categories under recipients, instead of a humanities and sociology separate, maybe we should have one category as Social Sciences.