Some recommended websites for exploring erotic writing:
Lisabet's Sarai's Beyond Romance - how to articles, interviews and all kinds of other good stuff
Write Sex - a how-to write erotica and related blog by professional writers and editors
Erotic Readers and Writers Association - market guides, how-to articles, reviews, etc.
Erotica Revealed - excellent erotica review site
Oh, Get a Grip! - Erotica and erotic romance writers on their work, their process, etc.
Babbling Books and More - erotic romance reviews, author spotlights, etc.
Sex, Food and Writing - blog of author Donna George Storey, featuring reviews, guest authors, etc.