Abstract
Mass adoption of virtual world platforms for education and training implies efficient management of computational resources. In Second Life Grid and OpenSimulator, commonly used for this purpose, a key resource is the number of servers required to support educational spaces. Educational activities can take place at different altitudes over the same virtual land, for different classes. This way a single virtual world server can sustain several different educational spaces/classes, reducing the number of servers needed to make available different classrooms or other educational spaces. One issue whose importance is emphasized in such conditions is that of class privacy, bearing in mind that most privacy-management features of these platforms are land-based, not space-based. In this paper, we provide an overview of the issues to consider when planning privacy in these platforms and the methodologies that can be developed and implemented to ensure it at an adequate level, including the extra privacy possible in OpenSimulator regarding Second Life Grid. © 2010 IEEE.

Abstract
Technological advance over the last decades created an atmosphere in which the organizations are forced to look actively for new options for cost reduction, in addition to, simultaneously, seek advantages to compete more effectively in their markets. This context requires focused, swift, more flexible and more competitive organizations which must, many times, implement radical changes, in the way they conduct business, employ people and use technology. This work focuses the e-business maturity stages of Portuguese SMEs (Small and Medium Enterprises) and large enterprises. Our goal is to identify in which e-business maturity stage they are and explore the relationship between their e-business maturity and the associated constrains to e-business evolution (previously identified in an exploratory study).

Abstract
Web accessibility presents itself as one the most important factors for the equality of societies in the modern days. This document is a simple and clear snapshot of the accessibility status of the websites of the Banks with activity in Portugal. Economic activities are part of everyday life since always. The banking sector has a large dimension for a long time, and has been doing a major contribution to economic growth in Portugal. We present an evaluation of the Portuguese banks websites against W3C Web Content Accessibility Guidelines 2.0. The results that were obtained show a severe lack of accessibility in the evaluated websites, what can be translated in the existence of a great number of barriers to all citizens that present some sort of disability.

Abstract
Web accessibility is growing in importance as each day goes by. Alongside with this growth, also the need of access to web resources, by those with some sort of disability, is increasing. The web is very important for spreading information and for the interaction between the various society elements. Given this, it's mandatory that the web presents itself as a totally accessible resource, so that it can help the disable citizens in their integration within the society. This obligation should be even bigger for the enterprises because, in their majority, the web is used as a marketing and business platform. This document is meant to be a position paper regarding the comparison of results between web accessibility evaluations of the Portuguese websites using version 1 and version 2 of the W3C Web Content Accessibility Guidelines.

Abstract
The Internet is extremely important for the publishing of information and for the interaction between the society elements. Due to this, it's essential that the web presents itself accessible to all, including those with any kind of disability. An accessible web may help the handicapped citizens interact with the society in a more active way. This paper presents a study made with a universe of 777 Portuguese biggest enterprises, using a W3C referenced tool (SortSite), and presents some statistical results according to the Portuguese Classification of the Enterprises Activities. The achieved results present a serious troubled reality that's preventing the disabled citizens from having the same access rights to the World Wide Web as the "non-disabled" citizens.

Abstract