You don't have to spend a fortune on fancy software to handle basic network diagramming tasks. Here are a few free apps that are effective and easy to use. At some point, every administrator will ...

Lovely Charts is a free web-based tool for creating flow charts, site maps, network diagrams, and other visualizations with a drag-and-drop interface ...

A list of free Microsoft Visio alternative software to prepare complex diagrams includes Kivio, Graphviz, Inkspace, Open Office Draw, and DIA Diagram Editor.