The original conception of the web (in this context, labelled Web 1.0comprised static HTML pages that were updated rarely, if at all. The success of the dot-com era depended on a more dynamic web (sometimes labeled Web 1.5 where content management systems served dynamic HTML web pages created on the fly from an ever-changing content database In both senses, so-called eyeballing was considered intrinsic to the web experience, thus making page hits and visual aesthetics important factors.
Proponents of the Web 2.0 approach believe that web usage is increasingly oriented toward interaction and rudimentary ssocial networks, which can serve content that exploits network effects with or without creating a visual, interactive web page. In one view, Web 2.0 sites act more as points of presence, or user-dependent web portals, than as traditional websites
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Source: Wikipedia
