MorgueFile has free high-resolution digital stock photography for corporate or public use. The site’s purpose is to provide free image reference material for use in all creative pursuit.
MorgueFile provides free license for image uses. You are free to remix or adapt the work, you can use the picture for free or commercial purpose. You are free to use without attributing the original author. But there are some conditions that you can not sell their work. You can license, rent or transfer their work. You may not claim yourself as the owner of the image. However if you have permission from contributor you can be waived.
You can download and contribute photos. On MorgueFile you can download free pictures without paying any fee. It is a public image archive. You can search images or browse archive in different categories.