Portals are information systems that support the user in his or her individual process with information production and communication. The term portal, in information technology terms, appeared in late 1990s at a time of the widespread use of the Internet by individuals and organizations (Finkelstein & Aiken, 1999; Dias, 2001; Bristow, Dickinson, Duke, Henry, & Makey, 2001; Collins, 2001, 2003). There are many types of portals on the Internet: portals for general consumer use and entertainment (my.yahoo.com), for specialized information (www.brint.com), for specific communities (Austrian Academic Portal at www.portal.ac.at/), for business enterprises (NEC global portal at www.nec.com, NEC US portal at www.necus. com/, NEC European portal at www.neceurope. com). In general, portals can be divided into two categories: public and enterprise (Goodman & Kleinschmidt, 2003; Forrester, 2003). Public portals started as Internet directories (Yahoo!) or search engines (Excite, Lycos, Alta- Vista, and InfoSeek). Services that require user registration such as free e-mail, customization features, and chat rooms were added to allow repeated use, and to make users stay longer at the site. Enterprise portals started as intranets and extranets, the “enterprise webs” that were intended to provide easy-to-use, secure, and personalized sites that may extend to an organization’s employees as well as to its customers and business partners. Enterprise portals evolved to include collaboration tools so that customers, business partners, and employees are empowered to maximize their value to the organization. Portals that combine Web communications and thinking inside large enterprises are considered as both a labor-saving and a cost-saving technology. Enterprise portals are also referred to as corporate portals. Some corporate analysts predict that portals spending will be one of the top five areas for growth in the Internet technologies sector.