Images

Google provides both basic and advanced image searching for over 1 billion images. Google's Advanced Image Search searching allows you to limit results based on usage rights, by size and quite a bit more.

Unsplash is a website dedicated to sharing stock photography under the Unsplash license. The website claims over 110,000 contributing photographers and generates more than 11 billion photo impressions per month on their growing library of over 1.5 million photos.