It looks as though I will be a (junior) PC member (= referee/reviewer).

Details:

AAMAS will be co-located with EC next year, June 4-8, 2012, Valencia, Spain.  Among other topics the CFP includes

4. Social choice theory
5. Voting protocols

Electronic Abstract Submission: October 7, 2011 (11:59 PM HST)
Full Paper Submission: October 12, 2011 (11:59 PM HST)

more info at
http://aamas2012.webs.upv.es