TagSpaces lets you organize, tag, and browse your files, photos, and documents on many platforms. It lets you create and manage notes and Web snippets (like in Evernote, but completely offline) and create a personal Wiki system. It features integrated MHTML, PDF, ODF, and image viewers, a Markdown viewer and editor, an advanced WYSIWYG HTML5 editor, file tagging based on filenames (extremely portable), a simple source code viewer and editor for the most common programming languages, and basic file and directory management.
FreeTable is a cloud database service that allows programmers to upload and download individual data values using a SQL-like API. Language bindings exist for Python, PHP, and Ruby. In many respects FreeTable is a data wiki, with notions of revision history, curation, and data rollback/roll forward.
Sequreisp is an ISP management software. It has a nice and powerful Web interface, and it can handle up to 3000 or more clients in a single server, thus it is oriented to small/medium ISPs and WISPs. It features load balancing, failover, prioritization, bandwidth control, P2P detection, Web cache, backup in a single file, VLAN support, and much more.
Website@School is a content management system especially designed for education. Blind and visually impaired webmasters can manage this CMS with a braille reader or speech synthesizer. It supports an unlimited number of sites, unlimited depth, RBAC, and with many educational features. It is also manageable by pupils.
Cinisis is a PHP library for reading CDS/ISIS databases. It's intended for integrating or migrating existing ISIS databases into other applications. It is a wrapper around other ISIS libraries and tools, providing a uniform interface and iterators for easily fetching data without bothering with internals.