Hitchhiker's Guide to the Internet is a German introduction to the technical aspects of the Internet. This book explains both the low-level protocols IP, ICMP, TCP, and UDP and the high-level protocols SMTP, POP3, IMAP4, NNTP, HTTP, Gopher, FTP, IRC, DICT, Finger, Daytime, DNS, and Whois.
SpeedReader helps you improve your reading speed. It is simple, interesting, challenging, and fun to play with. From a developer's point of view, it is extensible (Plugins), and as simple as possible (but no simpler). Functionality is only added if it improves the above stated goals.
The FreeMIS project is developing a free and better alternative to the commercial MIS (management information system) products currently used in Scottish high schools. It is currently running at North Berwick High School, where is provides reporting to parents, tracking and target setting, notifying the school office of unexplained absences from class via email, and writing positive referrals (certificates which recognise positive achievements by pupils).
BDDs [bry86] (or more precisely ROBDDs) are efficient data structures for representing a boolean formula. They are widely used in formal verification, in particular symbolic model-checking. Ruby- BDD, based on Buddy, provides access to BDDs from Ruby, a powerful and very easy to use object-oriented language. The purposes are quick prototyping and education.
Canorus is a cross-platform music score editor. It supports an unlimited number and length of staffs, polyphony, MIDI playback of written notes, chord markings, lyrics, and a number of import and export filters to many formats like MIDI, MusicXML, ABC Music, MUP, PMX, MusiXTeX, and LilyPond. It features multiple viewports of the same score, scripting support, score source view, and a fast and intuitive UI. It is based on Qt4, uses CMake as a project management tool, swig for scripting/macros integration (primary script languages are Ruby and Python), and the cross platform rtmidi library for MIDI playback. It is the official successor to NoteEdit.