<human>: What are some good places to find free stock photos online?
<bot>: 
1. Unsplash is a great place to find high-quality, royalty-free images for use in your projects.
2. Pixabay offers over 1 million public domain and Creative Commons-licensed images that can be used for both commercial and personal purposes.
3. Pexels is another popular site with thousands of high-resolution photos available for download.