Mermaid lets you create diagrams and visualizations using text and code.It is a Javascript based diagramming and charting tool that renders Markdown-inspired text definitions to create and modify diagrams dynamically.

This code creates a simple web site that queries Wikipedia to get the edit history of a page and renders it as a "history flow" in SVG.

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Visualize the evolution of a file tracked by git.

visualizing the editing history of Wikipedia pages

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<figure> <figcaption>history flow is a tool for visualizing dynamic, evolving documents and the interactions of multiple collaborating authors. In its current implementation, history flow is being used to visualize the evolutionary history of wiki* pages on Wikipedia. </figcaption> </figure>

Expialidocio.us is a tool for visualizing your del.icio.us posting activity. It displays a graph of your posting activity over time. You can select a timespan from this graph, and it will show you a tag cloud weighted by just those dates. Expialidocio.us was inspired by a posting by Jon Udell. Coming full circle, Udell has posted since posted about this application. Since then, I’ve published the sources.

extispicious, a. [L. extispicium an inspection of the innards for divination; extra the entrails + specer to look at.] Relating to the inspection of entrails for prognostication.