Here's a sci-fi, fantasy, and nonfiction publishing website to please OCD(ish) writers. (The more specifications, the better chance for stickler writers.) Tor is now looking for nonfiction and welcomes "...clear, thoroughly outlined pitches on specific topics."
Essays on classic or overlooked works of SF / FSF / Fantasy in translation
Internet / Geek culture
Manga & Anime
Nostalgia pieces on early film / TV
Science & Technology
promotional / marketing materials
Q & A interviews
Read the guidelines, and email your pitch to (blogsubmissions)(at)(tor.com).