This december issue of Scalable Computing: Practice and Experience is the final of two issues devoted to Cloud Computing and Applications based on Software Services.
To ensure the high quality of this issue, a reduced number of contributions that were presented at 2nd WoSS (Timisoara, June 6-9 2011) were chosen and an invitation to provide an extended version was sent. The reviewers were the same as in the Workshop so the peer-review process was exhaustive, from the abstract status prior to the Workshop until the final version that you will be reading. Additionally, the priceless feedback gathered during 2nd WoSS definitely increased the contribution quality.
As said in the previous issue, many of the authors come from countries that joined the European Union recently. This demonstrates that the European Research Family is not only growing up but also reunites around the Cloud Computing table, a bleeding edge and promising area which is expected to bring much outstanding outcome.