This is a convenient NATO (North Atlantic Treaty Organization) medal quick reference index to guides that are available on eBay, written by eBay members.  Excluded from this guide are the orders, decorations, and medals which the individual countries award for service with NATO (which have their own index).  It's important to realize that each NATO country may or may not use the various official NATO awards and in-depth research may be needed.  If you know of a guide that you believe should be included, please let me know.  

• Individual Decorations
• NATO Meritorious Service Medal guide pending
• http://testberichte.ebay.de/NATO-Medaillen_W0QQugidZ10000000001677205
• Service Awards
• NATO Medal FORMER YUGOSLAVIA guide pending
• http://testberichte.ebay.de/NATO-Medaillen_W0QQugidZ10000000001677205
• Ribbons
• http://testberichte.ebay.de/die-falschdeutung-von-uv-negativ_W0QQugidZ10000000000105095 
• Miscellaneous
• (in-work)

Medal collecting can be very specific and the above guides are intended as an introduction.  Expert advise is often needed since the guides can not address every possible question - especially about a specific medal you may be looking at.   The knowledge provided is intended to make your eBay experience positive.  If you found this guide helpful, a Yes vote is appreciated.  This will help me gauge the level of interest in this and similar topics for further guides.  Please visit my blog (http://blogs.ebay.com/tsa-li) and/or guides for further information.  Thank you for your visit!