Photosphere is an image browser and cataloging application. Photosphere works on local files only, and is not Internet savvy at this time. It reads and writes JPEG, TIFF, OpenEXR, and Radiance-RGBE (often called HDR for "high dynamic range") image formats. A BMP file reader was added more recently, but no writer. The program continues to evolve daily, and I welcome bug reports and suggestions from everyone.
The 2000 Royalty Free Images library contains over 2000 royalty free stock images that can be used for your commercial and non-commercial projects.