I saw a post from Adam Wolf on Google+ today about the UN opening up an icon collection, and it jumped out at me right away.  I love icons.  They’re hard to do well, and a great way to communicate basic information, whether on a sign or on your PCBs.  It was a nice reminder to me as as well since I actually started my career at the UN — in OCHA even (Office for the Co-ordination of Humanitarian Affairs), the same branch behind these icons — and it was one of the more memorable moments in my life for the opportunities it offered me down the road, and the people I met (including my wife!).  The UN icon collection is licensed under a creative commons license and they can be seen on thenounproject.com with a lot of other interesting icons if you’re interested.