Free icon pack from designer Adam Whitcroft for use as elements in your interface designs, perfect for web or mobile apps and fully scalable thanks to the use of vector shapes. File is downloadble as a PSD but also comes as a webfont for seamless integration into your website to reduce http requests.

Great resource!

Batch – 300 Pictographs for Web & User Interface Design

A lovingly designed and crafted suite of 300+ icons for web and user interface design. Each icon in the Batch PSD is a single shape layer, meaning they can be scaled up—or down—without loss of quality.

The download includes:

• PSD file (shape layers).
• SVGs (128×128).
• PNGs (16×16, 32×32, 64×64).
• Webfont (.eot, .ttf, .woff).

Batch PSD User Interface Icon Pack by Adam Whitcroft