Pictag is a simple web photo gallery with automatic thumbnail generation and tagging capability. It's self-contained in a single file, uses the filesystem for gallery layout, and requires no stand-alone database (it uses SQLite) or no database at all. It handles EXIF data, provides support for HTTP user authentication and authorization, and is customizable.
CGG is a simple static Web photo gallery, designed to be clean and easily usable, with EXIF support. Generated pages are static HTML files with no extra requirements on the server. The gallery source is a set of XML files containing everything needed. The gallery has modern design, and pages are valid XHTML 1.0 and CSS 2. No GUI is supplied: this is a console application, allowing easy scripting (e.g. auto-refresh after new images are uploaded via FTP).
netgviz is a set of scripts that allows you to easily make graphs illustrating layouts of computer networks at ISO/OSI layer 3. It parses a text file with a list of network nodes with their addresses and generates the data in dot format, which is suitable for a Graphviz set of tools. You can then use Graphviz to draw a graph illustrating the network topology.