Fontello has a big built-in collection of open source artworks by Fontello. To use with single element use this <span class="fontello-stopwatch"></span>

Vector line-icon font by Amit Jakhu. Version 1.0. To use with single element use this <span class=" icon-align-justify"></span>

A set of 250+ carefully crafted pictograms by Daniel Bruce. To use with single element use this <span class="entypo-note"></span>

The iconic font designed for use with Twitter Bootstrap by Dave Gandy.Avant comes baked with Font Awesome 4.0.1 siddim.com, which provides you with scalable vector icons that can instantly be customized — size, color, drop shadow, and anything that can be done with the power of CSS.