Popular stencils

Free
Colorfill boxes

Colorfill boxes

A set of colored boxes.

Free
Facebook Applications

Facebook Applications

A pretty sizable collection of Facebook related elements to use in creating wireframes for Facebook applications.

Free
Network and Peripherals (isometric)

Network and Peripherals (isometric)

Scaleable, labeled vector stencils converted from original isometric shapes of Visio 2007.

Free
Page Thumbnails for UI Design

Page Thumbnails for UI Design

This stencil contains thumbnail representations of common types of pages, such as search, login, and error pages for quickly designing application and site navigation layouts. There's a point in design where it's efficient to lay out the big picture of the application or site you are designing without getting mired in the...more

Free
Network 3D

Network 3D

The following picture shows an OmniGraffle palette I put together for doing network diagrams. It may be useful for others.

Free
Functional Flow Block Diagram (FFBD)

Functional Flow Block Diagram (FFBD)

Contains all the major components for a Functional Flow Block Diagram (FFBD), which are used in developing the functional architecture of a system and describing the system's functional flow.

Free
iPhone 3G Stencil

iPhone 3G Stencil

Includes standard interface components for the iPhone 3G: buttons, fields, map elements, keyboards, icons... All components are on a transparent background and should re-size nicely. Thanks to teehan+lax and Mercury Intermedia for sharing their the Photoshop and Ilustrator files.

Free
Isometric icons

Isometric icons

A handy set of isometric icons based on Visio's icons.

Free
Carousels

Carousels

Carousels stencil from the Design Stencil kit in the Yahoo! Design Pattern Library.