How to reference organizing conference symposia / panels on CV? Presentions for papers or posters at conferences are easy to reference, but how do you reference activities such as organizing conference symposia / panels on your CV?
I recommend including a section at the end of your CV entitled "Service", where you list things like conference/panel organization, committee memberships, refereeing activities, and the like.  Initially you may have only one or two items, but the list will grow over time.  As this list grows, organize it into subsections (University service vs Professional service, for example) and subsubsections (editorial boards, program committees, workshop organization, proposal reviews, refereeing, ...).

(I'm assuming that you mean the American Academic CV, which includes everything, and not the UK Professional CV, which is just a two-page sketch.)