SRESI is a smart bookmark manager. It currently sports both a command-line and a PHP interface. It works with both the standard hierarchical trees and the new and fashionable tagged bookmarks. It was developed as a way to interface both representation systems. SRESI can use Del.icio.us, Mozilla, Opera, and XBEL bookmarks, and handles a few more exports besides. Directories and tags are used equivalently, and the final hierarchies are inferred from actual tag use.
Samizdat is a generic RDF-based engine for building collaboration and open publishing Web sites. It provides users with the means to cooperate and coordinate on all kinds of activities, including media activism, resource sharing, education and research, advocacy, and so on. It intends to promote values of freedom, openness, equality, and cooperation.
Lodel is a high-quality Web publishing system (CMS). Text-processed documents (in DOC, RTF, or SXW) are imported using a server-side application, servoo. Documents are structured using the styles in a word processor (or with forms). You can easily add and modify database fields to fit your needs: title, images, abstract, etc. It automatically produces sites with a table of contents, keyword index, author index, and much more. It is compliant with Dublin Core, UTF-8, CSS, and XHTML. It is currently in French and will be shortly translated into English.
Autodia is a command line Perl application that generates UML class diagrams from source code, SQL, and database connections. It supports multiple programming languages including SQL, and can output images (using GraphViz/VCG/SpringGraph), Dia XML and Umbrello XML, or custom formats using templates.
QML (Quantity Modeling Language) is a "thing"-based language for scientific and mathematical data modeling. Each "thing" is a quantity which may be associated with either a structure or physical phenomena. Quantities, in turn, may hold other Quantities or values (numbers or strings). Higher-level data models, which associate or define meanings to various quantities (such as velocity or position), can be built from QML quantities. The higher-level data model (XML) schema that inherits from QML may be understood, and its instance documents may be parsed into QML documents and objects by the QMLReader.
ExifTool is a platform-independent Perl library plus a command line application for reading, writing, and editing meta-information in image, audio, and video files. It supports many different types of metadata including EXIF, GPS, IPTC, XMP, JFIF, GeoTIFF, ICC Profile, Photoshop IRB, FlashPix, AFCP, and ID3, as well as the maker notes of many digital cameras.
Red-Piranha is a search system that can actually learn what you are looking for. It can be used as a Web page, command line, or XML-WebService, so it will work with most languages, including Java, Perl, C#/.NET, and PHP. It includes learning abilities for the Desktop/Internet search functionality. All feedback from the user is stored in (editable) XML and RDF, and is used by the system to improve the quality of searches.
OntoWiki is a semantic collaboration platform for the development of Semantic Web knowledge bases. OntoWiki enables large distributed communities to collaborate on a semantic level, by allowing users to contribute small structured knowledge pieces, which stitched together may result in comprehensive knowlegde bases. Powl is Web-based ontology authoring and management solution for the Semantic Web. Both expose an extensive API for PHP programmers.