The document discusses important considerations for choosing digital tools for data visualization projects, including licensing, ownership, platform support, intended audience, flexibility, and robustness. It provides examples of free and paid tools for data visualization, mapping, project display and management, including ManyEyes, Google Maps, Google Earth, ArcGIS, MIT Simile widgets, Scalar, and Pivotal Tracker. It emphasizes that high quality metadata and understanding the components of one's data are important for enabling reuse and interoperability with other tools.