The topic of Web Portals, despite appearing to cover quite a narrow area, is an extremely diverse one. Amongst other things, it covers the technology of portals, how portal software is implemented and the many and varied applications and business uses to which portals can be put. This chapter investigates various approaches to portals research, concentrating on research related to the human asp...

Over the past few years the web has grown to several hundred million pages, while just a few of them get most of the visits. Such sites, called portals, attract visitors, advertisers and provide lots of valuable content at no charge to the visitors. The portals attract a disproportionate amount of the Internet advertising dollars and have the ability to influence the success of new electronic c...

User reputation has become a valuable commodity for enabling trusted transactions on the Internet especially with strangers in virtual communities. However, the reputation information about the various users are normally locked-up in the silos of different web-portals where the members interact. This effectively creates multiple reputation ratings for the same user, each one painstakingly built...

Evaluation of regional web portals is based on methods of Digital Governance in Municipalities Worldwide. We evaluated 6 regional web portals using 12 parameters in area of content and services. From the five possible evaluated areas belonging to methodology of Digital Governance in Municipalities Worldwide, we focused on the areas of content and services. We compared Czech web portals against ...

From a geoinformation science perspective real estate portals apply non-spatial methods to analyse and visualise rental price data. Their approach shows considerable shortcomings. Portal operators neglect real estate agents' mantra that exactly three things are important in real estates: location, location and location [16]. Although real estate portals record the spatial reference of their lis...

Healthcare portals are becoming increasingly popular with Internet users since they play an important role in supporting interaction between individuals and healthcare organizations with a web presence. Additionally, many of these organizations make use of knowledge management mechanisms on their healthcare portals to manage the abundance of health related information, exchange and share inform...

Cultural content on the web is available in various forms (documents, images, audio tracks, videos, collection items, learning objects etc.), concern various topics (art, history, handicraft, etc.), is written in different languages, is targeted to both laymen and experts, and is provided by different independent memory organizations (museums, archives, libraries) and individuals. The difficult...

Portals for the public administration (PA) are Internet gateways leading to a broad range of services, devoted to a great number of users. The offered services can potentially be all the ones offered by the PA offices. The final users involved are potentially all the citizens, thus ranging from young people to retired ones, to impaired ones. The benefits offered by putting PA services on the In...

Our goal is increasing the users’ value and experience and decreasing the implementation time for web portals. To achieve this goal we adopt a subject-centric perspective on information architecture. The fundament of this approach is that portals should be driven by subject-centric models of the portals’ domains. Out of these domain models, the interaction and interface design of the portals is...