Vector images like logos can be resized without quality loss, while bitmap images made of pixels distort when resized. GIF is best for simple images and web use due to its compression, while JPEG is preferred for photos due to quality retention when compressed. Embedded graphics increase file size while linked graphics avoid this but don't allow for vector use. PNG supports up to 4 colors per pixel and lossless compression maintains the original file. PNG overcomes resolution issues of GIF and JPEG and cannot support animations. BMP files distort on resizing and degrading quality occurs when enlarging a smaller BMP file. Flickr is a photo sharing site where images can be uploaded, tagged, and viewed both recreationally and for academic purposes.