Founded by the husband-and-wife team of Edward Boatman and Sofya Polyakov, along with designer Scott Thomas, The Noun Project launched in 2010 with a catalog of a few hundred icons and has since grown by leaps and bounds. New symbols are submitted daily by designers around the world, and the Noun Project team recently crowdsourced the translation of its library into 25 languages.
Also, I really want this animal pin pack.