PICOL stands for PIctorial COmmunication Language and is a project to find a standard and reduced sign system for electronic communication. PICOL is free to use and open to alter.
Right now there is total number of 116 Icons in the icon library. There are much more icons available for download as ZIP-files. All icons can be downloaded on blog.picol.org/downloads/icons
- Freebie: St. Valentine’s Day Icon Set (10 PNG/PSD Icons) (smashingmagazine.com)
- 37 Fresh And Free Icon Sets In PSD Format (smashingapps.com)
- 5 Tips for creating great icons (marketing.yell.com)
- Exclusive Vector Freebie: New Social Media Icon Set (noupe.com)
- Pinterest, Google+ & Top Sets of Free Social Networking Icons (sayitsocial.com)