icons
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http://getemoji.com/
Copy and Paste Emoji - AIGA | Symbol Signs
http://www.aiga.org/symbol-signs/
The complete set of 50 passenger/pedestrian symbols developed by AIGA is available for all to use, free of charge. Signs are available here in EPS and GIF formats. - Font Awesome, the iconic font and CSS toolkit
http://fontawesome.io/
Font Awesome, the iconic font and CSS framework - Icon Search Engine - Download 475,450 Free Icons, PNG Icons, Web Icons
http://findicons.com/
FindIcons.com - Search through 300,000 free icons in more than 2,000 icon packs - OpenIconic
https://useiconic.com/open
An open source icon set with 223 marks in SVG, webfont and raster formats - Sharp and clean symbols - GLYPHICONS.com
http://glyphicons.com/
Library of precisely prepared monochromatic icons and symbols, created with an emphasis on simplicity and easy orientation.