After a few months of hard work we've just launched Visual Hunt - for everyone who needs free high quality photos.
Quick facts about Visual Hunt: 1. More than 15,000 best free public domain photos (CC0). We manually choose only the highest quality and tag them. Next 10,000 photos being tagged. ;)
2. More than 350 mln Creative Commons photos from Flickr (if you cannot find Public Domain photo).
3. Search and filter CC0 photos by color. Color pallette for every photo.
4. Photo popularity index. Shows how many websites use the photo (still beta experimental feature).
5. Possibility to save favorite photos to lightbox (after signing up).
6. Possibility to embed photos without downloading.
I would love your feedback what I can improve to make the website even more useful for you. Thank you.