tagfs is a virtual user space file system to handle tags. It can be used to organize your files using tags.
TMSU is an application that allows you to organise your files by associating them with tags. It provides a tool for managing these tags and a virtual filesystem to allow tag-based access to your files.
A smart CD/DVD/ISO backup solution written in PHP.
A .NET component to create PDF documents without using Adobe Acrobat.