I hate to pay for my fetish fix, and I'm sure you do, too. So as promised, here's my post on some of the sources I've found for quality free material. If anyone else has anything to add, feel free to post a comment. :-)
Let's start with Deviant Art. I've mentioned it before, but it bears repeating. You have to know what you're looking for there; otherwise, you end up wading through a lot of crap. But try doing a search on any of the big name fetish models, and you'll come up with a ton of great images. Look to your right for links directly to some of my favorite model and photographer pages. NOTE: you do have to register if you want to see the adult material, but you don't have to give much info at all; and of course, you can always make something up. You didn't hear that from me. ;-)
Ulorin Vex's website is still free as of this writing, and I've recently found another cute young fetish model calling herself (stifles giggle) Sister Sinister with a free website. She's a bit pretentious, but very attractive. Her galleries start here. Then there's Aradia Ador's site, La Petite Coquette. I've only just now discovered her, but I certainly like what I see. Lastly, here's a very definitely unofficial Masuimi Max gallery with a nice variety of pics.
One Model Place
One Model Place has a bunch of Darenzia photos, as well as some much shorter pages for a number of other fetish models; but I'm not linking to their pages here because they're hardly worth visiting. Also, the site's search function doesn't work properly. Your best bet if you're looking for someone in particular is to Google "onemodelplace" and the model's name.
Model Mayhem has free pages of pics for many fetish artists, including Kumi Monster, Hollywood Geisha, Scar, Pia Kaamos,Slinka, and Darenzia - and those are just the ones I've found so far; one link leads to another, and you could go on forever. Oh, and they also feature various photographers and fashion designers, too. HINT: If you see an "n/a" on a gallery page where a thumbnail should be and you're curious to see what you're missing, just click on the thumbnail before or after the "n/a" and then use the "prev" or "next" link.
Alter Ego has extensive galleries for a number of top fetish models - as well as a number of fetish models you've never heard of. You can look at just so many pics before you have to register, and then you're asked to give a lot of personal information; but again, you can just make something up. And when they ask you for a picture, just throw them any old JPG of anything - they don't really check in spite of what they say; I uploaded my usual Sorayama gynoid avatar, and they've never called me on it. Anyway, here's the link to the gallery list.
Latex designer sites are another good place to find free pics, and many of them use people like Bianca, Kumi and Darenzia to model their designs. Here are some of my favorites: Ego Assassin, Fierce Couture, Fraulein Ehrhardt, HW Design, Jane Doe Latex, Vex Clothing, and of course the justly famous Marquis.
Some fetish photographers also have free sites, like Gil Perron (one here and another one here) and Martin Perreault. Maxime Avet has a website that's not working properly at the moment (here, if you want to try anyway), but he also has a page on Model Mayhem here. DVS has a page on Model Mayhem, too, as well as an independent website here which has many more pics - and lots of other stuff, as well. Viva Van Story has just opened for business with this website, which should appeal to fetishists of several different stripes. Finally, Hypnox has a whole lot of stuff that's very definitely not to my taste (though it might be to yours), but he does have a few "ohhhh woooowwwww" pics like this one, so I felt he was worth recommending.
Finally, there's Free Ones. I almost hate to recommend this site because it has all the ambience of Beavis and Butthead's gym locker, but it really is a great source for hundreds of free pics of pretty much anyone you can name: fetish models, porn stars, celebrities. I'll save you at least a little bit of ickiness by linking you directly to the pages of some of my favorite models: Ancilla Tilia, Bianca Beauchamp, Darenzia, Kumi Monster, Masuimi Max, and Susan Wayland.
*dusts hands* Okay, now that that's out of the way (and believe me, I spent a good two weeks putting it all together), it's back to story writing. I had the most amazing MC dream a few weeks ago, and my Muse is now blowing seductively in my ear. I'll keep trying to blog at least once a week until the story is done, but if you don't hear from me for awhile, you'll know what's happening.