Well, yes and no. Some stock images are free for use by anybody. Most stock images are free for use by any deviantART member. Some stock images are free for use by any deviantART member, but also allow off-deviantART use so long as the stock provider is notified. Lastly, some stock is available only through purchasing, being a contest winner, or having a password to the download. In any case, the terms will be stated in the Artist's Comments.
Many stock photos can be found for free on DeviantArt- just go to the "Resources and Stock Images" section. Many artists post their original artwork here, and are happy to let one use their images in return for simply crediting the artist.
Royalty-free stock images can be found at sites such as iStockPhoto and Shutterstock. Also, the artist community deviantART has many members who make stock images available.
There are a number of sites that offer free stock photos for use including ones to be used for Christmas cards. Some sites where one can find these photos are "Stock Free Images" and "123RF".
Internet sites which offer the widest choice of stock images include, Soda Pop, Shutterstock, Arena Pal, Photo Libraries, Stock Index, Fotosearch, and Big Stock Photo. These sites have a wide variety of categories for stock photos to choose from, and they vary in pricing.
Imgur has a great website that is filled with royalty free stock photos. Also, Getty Images has a wide selection of themes and seasons for their stock photo collection.
Some free photo stock websites include 'Free Stock Images', 'Dreams Time', 'SXC', 'Free Digital Photos' and 'Free Stock Photos'. One may also find stock images by using the Google Images website.
Stock photos are images that are available for free. If you see these kinds of photos, then they are safe to use without copyright infringement.
You can obtain royalty free check images from the following sources: Deposit Photos, Big Stock Photos, Flickr, Open Photo, Stock Vault, Unprofound, Free Media Goo.
Stock photography consists of photos which can be purchased or downloaded for free. Shutterstock is a website which has thousands of photos of almost everything which you may be looking for.
One can find pictures of royalty free images from sites, such as Unrestricted Site, SXU, Pixabay, Free Digital Photos, Clker, Stock Photos For Free, Deposit Photos and Getty Images.
One can find free nude art images at websites like DeviantArt, where photographers and models alike upload their own photos. There are both nude and non-nude photos of all sorts. Erotic and tasteful.
Christmas photos can be printed for free at places that offer clip art such as FreeDigitalPhotos, FreeFoto, ChristmasGifts and Christmas Stock Images.