Salsa - Anonymous messages in your workplace
ACDSee - ACDSee is an image viewer that uses very little system resources, and it has a small, sleek size that won't take up much space on your system.
Bebop - Bebop provides a nice web interface to a list of publications stored in a BibTeX file.
digiKam - Professional Photo Management with the Power of Open Source
SicMu Player - SicMu Player is an application that enables users to play audio files on their devices easily.
Flickr - image and video hosting website