The document discusses free and open source tools that are useful for libraries. It begins by defining open source software and its benefits. It then lists some commonly known tools like Firefox, LibreOffice, and Linux. The bulk of the document describes lesser known but still useful tools for libraries, including LimeSurvey for web surveys, Scribus for desktop publishing, Camstudio for screencasts, and Zotero for citation management. It provides brief descriptions of each tool's functionality and benefits. The document encourages finding more tools through listed resources.