Nerve - online zine of literate smut, with essays, fiction, poetry, photography, personal ads, discussion forums
Scarlet Letters - stylish biweekly journal of femmerotica edited by Heather Corinna, with features, fiction, galleries, reviews, columns, advice
The Spectator - smart sex-positive weekly with emphasis on the Bay Area sex industry
Nightcharm - stylish, literate gay sex zine with galleries, stories, essays, commentary and reviews
The Position - online magazine with well-written features and weekly news blurbs; frequent contributions by Annie Sprinkle, both writing and photography
Good Vibes - monthly magazine from the famous San Francisco woman-owned sex shop, with regular columns by Carol Queen, Patrick Califia-Rice and others
Girlphoria - webzine exploring female sexuality, with reviews, interviews, fiction, galleries
Metro Madness - literate, stylish web zine exploring intersections between gender and sexuality
Dare Magazine - thrice-yearly feminist ezine of literary erotica, essays and reviews
Sexilicious - covering women's sexuality and body image issues
Mind Caviar - fine webzine dedicated to sensual pleasures of all types for discriminating and intelligent readers
Shades Beyond Gray - eclectic zine "for, by, and about consenting adult freaks who consider respect, fun and negotiation to be integral to a happy, healthy, sexual experience"
Salon | Sex - leading online magazine's section devoted to sex (though they publish lots of articles about sex in other sections as well)
Newcity | Sex - articles about sex from alternative weeklies around the US and Canada
Sex Positive Initiative - no frills design, good collection of essays on sexual topics
Cliterati - sex site for women featuring erotic fantasy stories, features, news, reviews, advice