SAGT 2009 (the 2nd international symposium on algorithmic game theory) will be held in Cyprus on October 18–20, 2009. The deadline for paper submission is May 3rd. This is the natural place to send all your AGT papers that were rejected from EC….
A somewhat related conference is ICEBE 2009 (IEEE International Conference on e-Business Engineering) to be held in Macau (China) on October 21–23, 2009. The deadline for abstract submission is May 1st.