Icons8 is a collection of icons created by a single team. The ideas for the icons are crowdsourced by the community.
IcoMoon provides a package of vector icons, along with a free HTML5 app for making custom icon fonts or SVG sprites. Browse among thousands of pixel perfect icons or import your own vectors.
IconArchive is a professional tag and color filter based icon search engine with more than 290,000 icons for web developers, end users and graphic artists. You can collect, organize & share your favorite icons here with ease.