Because all cameras and lens yield a very different picture quality at different apertures, ISO speeds or focal lengths, all these Exif parameters can be viewed to help you learn to take good photos.
+ Filter Flickr photos by selecting different Samsung phone and camera model.
+ Sort results by relevance,interestingness or date.
+ View detailed Exif info. like ISO speeds, aperture, shutter speed etc..
+ Zoom in / out of picture.
+ search on photo tags (keywords).