Unsplash provides 10 new photos every 10 days. This is one of the best licenses available today, especially when we talk about images as they are CC0, which is basically public domain. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission. Which mean 100% images for your work. What makes unsplash stand out is the fact that the images here are quite unique and they stand out . You can use if for blogging, template design, posting pictures in your website content, advertising, banners etc.