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The Web is rapidly becoming the prime medium for human socialization. As it evolves towards an information-centric operation, it records everything and forgets nothing, assuming that every online resource disclosed by people (photos, posts, multimedia files, etc.) is permanently valid and is to be stored forever. However, throughout their lives, people tend to change, both in their habits as well as in their views and opinions. In many situations, as the years go by, information released loses relevance or people may decide they no longer want others to access information they have previously published. The work presented in this paper strives for a new information persistence paradigm, whereby the enforcement of "digital forgetting" is implemented over an information-centric model for the Internet. The defined solution enables the definitive elimination of digital objects, either on-demand or on a pre-scheduled basis, and, hence, their "forgetting." The solution, conceived within the framework of the European project CONVERGENCE, is based on the employment of metadata descriptions about resources, which unambiguously identify their rightful owners. This additional data is efficiently bound to the resource through the use of an extended version of the MPEG-21 Digital Item specification, and its prescriptions are enforced by CONVERGENCE's distributed provisions.

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The onset of the global crisis has emphasised the persistence of substantial differences in development and social progress within the euro area. The specific case of countries located in the southern periphery region has come to the centre stage, due to the harsh economic conditions that all these countries have experienced in the recent past. In the aftermath of the American subprime creditbubble, these countries’ high indebtedness raised doubts as to their ability to sustain publicfinances, with the financial crisis developing and gaining momentum due to the fragilities presentedin the economy. To varying degrees of severity, all of these economies have since been forced to introduce strong fiscal tightening pogrammes in order to achieve fiscal consolidation, which have translated into recession and rising unemployment. This book undertakes a comprehensive analysis of the causes of the crisis in southern European countries, showing that the ‘Achilles heel’ of these economies is rooted in the dismal evolution of productivity and in a specialisation pattern excessively based on the so-called ‘traditional’, low and low-medium tech industries, which yield low margins, declining export shares and, ultimately, withering international competitiveness. Such evidence suggests that the southern European periphery industrial growth model has reached itslimits, demanding a multidimensional policy approach capable of overcoming the magnitude and complexity of the present crisis. Without denying the need to adjust public and private balance sheets, it is argued that finding a sustainable path out of the present problems requires addressing the challenges of productivity growth and competitiveness in the long term. © 2014 selection and editorial material, Aurora A.C. Teixeira, Ester G. Silva and Ricardo Paes Mamede; individual chapters, the contributors

Abstract
The literature on the National Systems of Innovation (NSI) is a relatively new field of research that has spread remarkably in the past 20 years. This article offers a complementary, quantitative description of the state-of-the-art of the literature based on bibliometric methods, by explicitly addressing the roots, evolution and influence of NSI literature. The exercise shows that over time the rate of published articles was quite irregular and that contributions on NSI have not (yet) converged to an integrated analytical framework. Although historically detailed descriptions on NSI showed a noticeable increase in the more recent period (20062010) analyses using more formal and diversified quantitative methodologies for assessing the performance of NSI remained lacking, reflecting its persisting methodological weaknesses. The roots of the NSI literature can be found at the core of innovation studies by certain well-known scholars in the area of economics of innovation and science policy research. Even though publications on NSI are falling in relative importance and are highly concentrated on a small set of countries (United Kingdom, Denmark, and the United States), their influence is global. They are cited by authors affiliated in organisations around the world, notably in Latin America and Asia. Such an influence goes far beyond the area of innovation studies and has resonated in fields such as economic geography, environmental studies, international business and managerial sciences. This demonstrates that the NSI literature is not self-referential.