Rupert Huse & Sons Tools for Controlling People. They have good quality stuff, but I don't shop there often as I find them a bit on the expensive side. The site has a bit of a "snuff film" feel to it, but don't let that put you off. I would recommend this site for those who are serious about their kink, not for people just looking to give it a try. They have some fantastic bondage furniture, that I will someday own. Someday...
The Purple store If you want purple, don't bother going anywhere else. A trusted Amazon affiliate.
Babeland Sex toys for a passionate world.
A women-friendly sex shop carrying erotic toys for all tastes and genders.
Extreme Restraints Next to Babeland, this is my favorite source for sex toys. They have excellent customer service, and their selection is great!
Mistress Katherine Mistress Katherine is a professional dominatrix as well as an old and dear friend of mine. Please, go check out her site. She may be just the playmate you're looking for.
JT's Stockroom Another excellent retailer of sex toys and bondage gear, including plus-sized corsetry. Also, their plus-size corset models are actually plus-sized.
JimmyJane Makers of high-end sex toys like the Form 6. JimmyJane uses high quality materials and an pleasing esthetic to make some truly amazing sex toys. A little on the pricey end of things, but well worth it.
Filament: The thinking woman's crumpet Artfully done photographs of very pretty men, thoughtful articles, wickedly funny and insightful advice columns. What's not to love? Filament is the porn mag that many sex-positive heterosexual or bi women have been longing for.
Erotic Review Books A British publisher of erotic literature, comics and art books. They have an extensive catalog of erotic reprints from Victorian times forward. Honestly, with many of these books, the excerpts they have in the description is enough to get me hot and bothered.