Font Awesome gives you scalable vector icons that can instantly be customized — size, color, drop shadow, and anything that can be done with the power of CSS
Features of Font Awesome
One Font, 369 Icons
In a single collection, Font Awesome is a pictographic language of web-related actions.
Scalable vector graphics means every icon looks awesome at any size.
Free, as in Speech
Font Awesome is completely free for commercial use.