freedigitalphotos.net is a great resource for free digital images if you don’t need them to be too big (generally the max size width or height of the free versions is 400px) and you provide an attribution to where the images came from. You can buy the images to remove the requirement of attribution and also purchase hi-res and extended licenses if this is what your project requires. The website is ad supported and is Securi Certified that they are malware free and do not have direct links to webpages that contain malware. Securi in itself deserves it own post in the resources section which coming soon)