Adobe Bridge is a great software for browsing and categorizing images. A missing feature is the immediate view of the image's histogram, the graphical representation of the tonal distribution in a digital image. The module supplies the Histogram Panel with the information required, using public API, Adobe object model and javascript language.
A social app that download photos from Facebook and Flickr
SocialTag allow you to download and store you photos on a mysql database.You can download photos that match certain tags or the number of "likes" is greater or equal with your request
A Python script that can be used to get information on TV shows and Movie Shows from thetvdb.org and themoviedb.org. This is an learning experience and anybody can chime in on everything.
WordyPics is a Web 2.0 inspired application allowing for the interactive organization of images through use of a short-form adjectival tagging mechanism, empowering the user to quickly assess content and allowing for improved PBLOM organization.
DBiblio helps to store and categorize your books. It provides many fields like title, subtitle, ISBN, number of pages and many more. DBiblio run on Apache+PHP and MySQL. The interface is based on Dojo.
Armaria is a personal database of scientific publications and other documents. It helps to store, organize, browse, view and cite scientific documents (papers, books etc.) and other types of multimedia (e.g. videos). Armaria is free and cross-platform.