My wife found this for me.  At the House for All Sinners and Saints, an urban Lutheran liturgical community in Denver Colorado, they asked this question and collected answers throughout Advent.  If you’d like to see how they answered this question, click here http://sarcasticlutheran.typepad.com/sarcastic_lutheran/2008/12/where-we-met-christ.html and look below the icon.  There are futher comments below (on that site) if you are interested in following further.