When did "Paper Certificate Exchange" launch?
This is a great idea!
https://secure.unitedmileageplus.com...teExchange.jsp
I see it mentioned in passing at
http://www.flyertalk.com/forum/19133272-post9.html but we had no idea that it was an option when we used a paper AB cert at the airport last week! It says online that UA no longer accepts paper certs for ticketing at airport locations, but that has not yet been our experience.