If you are designing your software projects and writing documents about your projects, probably you are familiar with Microsoft Visio. Visio is the first diagramming tool for me, and sometimes i cannot find the shapes which i need. Visio's default shapes has many items but more shapes equals to more enjoy for me.. You can download from here;

Visio stencils for IT Pro posters

http://www.microsoft.com/en-us/download/details.aspx?id=11616

http://visio.mvps.org/Downloads/default.html

When you download your shapes, then you can extract or copy extracted files (*.vss files) into your shapes folder under Documents/My Shapes. Then open Visio and go to Files > Shapes > My Shapes and select any shape to add it shapes bar.

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