Web sites have evolved over time. First generation sites were static—no interactivity. They included basic structures. Second generation sites included intuitive, user-friendly navigation systems, focused on the content, and animation—blinking text, moving banners, animated images, etc. Since businesses were now online, there was much more interaction than with first generation sites. Third generation sites addressed their audiences based on their objectives, which drove the design and structure. Splash pages were popular, as was the use of cascading style sheets, portals, and forms. These sites focused on content and were easily navigated. Fourth generation sites are participatory and highly interactive.
They provide richer experiences for their users. Site designers take full advantage of the new tools of Web 2.0. They frequently include wikis, blogs, podcasts, webcasts, and Web services. Standards are being developed for mobile users of the Web to make their online experience productive and efficient.
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