Grid, Cluster, and Cloud Computing represent important points on the parallel and distributed computing platform landscape. Grids and clusters continue to generate interesting and important research. The inclusion of Cloud computing is new for 2009 and we are happy to report that our track has two high quality papers on Clouds. This year the track was very competitive and 7 out of 27 papers were selected, an acceptance rate that is lower than the conference as a whole. The papers were carefully reviewed by all chairs with 4 reviews per paper and a clear consensus emerged on the top 7 papers. We are pleased that one of our papers (POGGI) was selected as one of the top 4 best papers in the conference. The papers spanned many countries in Europe and Asia and covered a wide-array of topics including programming systems, infrastructure, and applications.