Popular stencils
Tabs
Tabs stencil from the Design Stencil kit in the Yahoo! Design Pattern Library.
Rounded Numbers
Why clutter up your diagrams with a lot of text when the most used way of annotating diagrams is by using a number or a letter inside a circle? Very useful when needing to annotate diagrams, drawings, or photographs.
Annotations
A set of annotations for photographs and diagrams inspired by the excellent annotations available in Little Snapper from RealMac Software.
Touchscreen Hand Gestures
A collection of drawn hands for documenting touchscreen interactions. Includes point, tap, pinch, spread, drag.
Web Form Elements
Edward Anastas has put together a handy stencil composed of often-used elements in HTML and web page forms: radio buttons, checkboxes, combo boxes, entry fields and text areas. Nice looking and Aqua, to boot.
Web Detail Flowchart
The page title, page file name and page description area labels are editable. I added an example of how I use this stencil. Feel free to use as you like though.
Pretty Urban Building Icons
A collection of icons of urban buildings
OS logos
A collection of OS/hardware logos, including Sun, HP, Linux, Red Hat, FreeBSD, Windows, Debian, Darwin, IBM, and VMware.
elwebUI Web wireframe kit
This is the stencil I created over the past three years of making wireframes every day. They save me a bunch on time and I thought the best thing was to share it. All elements are made with vectors inside of OmniGraffle. PDF exports are very small (file size) and resolution independent. You can zoom in as much as you want...more