Korallenriff is a program that collects input from different network sources and stores their data into one database. For example, it can receive POP3 mail or can fetch NNTP groups and store the received messages in a database. One can then, for example, use the database data within a Web site to display the latest postings of a newsgroup or to create an online mailing list archive. Another possible use would be to build a blogging-software where one can post via email.
docx2txt is a tool that attempts to generate equivalent (ASCII) text files from Microsoft .docx documents, preserving some formatting and document information (which MS text conversion drops) along with appropriate character conversions for a good (ASCII) text experience. It is a platform independent solution consisting of (core) Perl and (wrapper) Unix/Windows shell scripts and a configuration file to control the output text appearance to fair extent. It can very conveniently be used to build a Web based docx document conversion service. Some Makefiles and Windows batch files are provided for easy installation of the scripts. With unzippers like CakeCmd that can deal with corrupt Zip archives, this tool can extract text from corrupt docx documents in many cases, where MS word processor fails to even open them.
Spectro-Edit reads in regular PCM audio files, then shows the audio visually in a time vs. frequency plot. The fun part is that you can "paint out" any part of the visualization and play back the audio subject to your modifications. When you are happy with the result, you can save your work back to a WAV file. This could be useful for podcasting (edit out microphone noise, chair squeaks, phones ringing, and other background noise), music (make strange and unusual modifications to the sound for artistic reasons), research (visualize animal calls or noise pollution from nearby industrial activity), and general purpose geekery (which was the original purpose).
Brain Workshop is an implementation of the Dual N-Back mental exercise. This exercise is a mental activity that has been scientifically shown to improve your working memory (short-term memory) and fluid intelligence. The game involves remembering a sequence of spoken letters and a sequence of positions of a square at the same time. Brain Workshop includes additional challenging game modes beyond Dual N-Back.