"[S]ince 1967, the Encyclopedia of Philosophy, described by Booklist as 'the best and most comprehensive English-language reference source for philosophy,' has been the cornerstone of the philosophy reference shelf. Lauded for its clear and accessible presentation of wide-ranging philosophical subjects, the Encyclopedia has earned its place as a first-stop resource."
Free to all, but unlike Wikipedia, "each [SEP] entry is maintained and kept up to date by an expert or group of experts in the field. All entries and substantive updates are refereed by the members of a distinguished Editorial Board before they are made public. Consequently, our dynamic reference work maintains academic standards while evolving and adapting in response to new research."
"Broad theoretical essays address issues of sex and gender at the personal and the social level; others examine issues of identity, status, class, ethnicity, race, and nation; of sexuality and the body; of social institutions and the structures of representation – all through the lens of gender."