Fotolia is the first worldwide social marketplace for royalty free stock images, allowing individuals and professionals to legally buy and share stock images and illustrations. Fotolia offers the largest image bank of free and affordable royalty free photos and illustrations. They currently have over 830,000 stock images available and the service is free to use. Photographers and designers update Fotolia with new photos and illustrations each day, while photographers and designers receive commission from each photo sold and revenue from advertising in the free section.