Questions of informational equity must be reassessed periodically in light of changing social, political, cultural, and economic conditions. As the social and material conditions of society evolve, old arrangements and understandings may break down or be supplanted by new ones. Notions of equity and inequity are dynamic, and depend on both stated and unstated principles and assumptions. They can be fully understood only within specific contexts, or, to paraphrase Amartya Sen, by addressing the question "equity of what?" (Sen, 1992). [Lievrouw & Farb]