Robochart makes drawing all types of flow diagrams, such as data flow diagrams, UML, flow charts, and org charts fast and easy. Drag and drop shapes and lines from a large library, add text in selectable fonts and colors, and modify the diagram with direct manipulation. Output formats include PostScript, MIF. and HTML with images and maps.
iVote is a sort of visual poll/image voting system that allows you to set up a collection of images that users can then vote on. A full administration screen is available that allows you to add/delete entries, sort by fields, gather statistics and manage the database. Users are presented a visual preview page where they can vote. It includes theme support.
Photo Collection is a Web-based picture organizer. Pictures are indexed in a relational database (currently MySQL), and can be organized in hierachical categories. Each picture has a thumbnail and can have a name. It is written in PHP on the Web side, and there is a Perl client for database administration.
PicBook automatically produces a photo album in HTML format of your scanned images or photographs. It come with automatic image processing, slideshow, transition effects, and other nifty features. It is easy to customise with its configuration file and HTML-templates. PicBook is a Bourne shell script and therefore should run on any Unix or Linux system. It requires the standard grep and awk commands, which should be available on most systems. Additionally, it needs the "convert" and "identify" commands from the ImageMagick package to handle images.
PLOTICUS is a command line utility for creating bar, line, pie, boxplot, scatterplot, sweep, heatmap, vector, timeline, Venn diagrams, and other types of charts and plots. ploticus is good for automated or just-in-time graph generation. It handles date, time, and categorical data nicely, and has some basic statistical capabilities. It can output to GIF, PNG, SVG, SWF, JPEG, PostScript, EPS, and X11. You can use convenient preset options or create complex scripts with rich and detailed color and style operations.
graphviz is a set of graph drawing tools and libraries. It supports hierarchical and mass-spring drawings; although the tools are scalable, their emphasis is on making very good drawings of reasonably-sized graphs. Package components include batch layout filters and interactive editors for X11, Java, and a TCL/tk extension. The batch filters can be configured as a web visualization service (using GIF and click-maps). Typical applications include display of finite state machines, software diagrams, database schemas, and communication networks.