Image Twist claims that it isn't just another image hosting site, and during my time there, I found that to be true. One of the things that sets it apart is that you can earn money for your content. There are some rules to follow, but they are minimal, and the reward is worth it. More on that in a bit.
When I first opened Image Twist on my screen, I was instantly struck with how uninteresting it looked. The design is very basic and bland. There is nothing that pops out or draws a person in. As someone who spends copious amounts of time perusing porn sites, I am used to sites offering visual titillation from the go. Image Twist has none of that, but it's not a bad thing. The bare-bones design makes it completely safe to have on your monitor where others might see it. There is nothing to suggest it hosts adult content. Which brings me to my next observation. Image Twist allows porn images, but it is not solely for porn. Although it does warn against offensive material, porn itself does not appear to be included in that definition. So long as your content doesn't infringe upon copyright or depict something illegal, you should be good to upload.
Not surprisingly, registration is required if you want to upload. The good news is that registering is free and easy. The site doesn't cost anything to use at its most basic level, but if you want faster speeds, there is a pay option to get them. It isn't expensive, but it is something to keep in mind. There are a few different upload options, including one that allows you to upload images in bulk.
As for the earning potential, ImageTwist.com breaks it down for you in the FAQ section. There are also posts in the forums where members post proof of their payouts. The program has several payment methods, and in most cases, pays within 2 days. There is also a refer a friend program, allowing members to earn even more.
Image Twist is nothing fancy, but it is a great option for free image hosting with the possibility of earning a little on the side.