Tens of thousands of photos with CC0 licenses, available for commercial use without registration, can be downloaded directly. Additionally, there are some CC-licensed photos that can be used commercially (with attribution). You can also directly embed the photos on your website or blog. The huge collection of free photo resources has only one drawback, the keywords for the photos are not well defined, making it less precise to find photos. However, there is a feature to find photos by color, and some images are only suitable for web use with limited resolution, but the large number of photos makes up for it.