smart money

Successful Web 2.0 applications are usually successful because of its ability to harness collective intelligence; the ability to provide very simple mechanisms to collect and aggregate data that can then be turned into something useful for its users, such as for decision making or to find information. For example, collective intelligence makes Wikipedia the most popular online encyclopedia. Collective intelligence in the form of spam reporting helps GMail filter spam. Collective intelligence on what people like to read makes digg the most popular site to find blogs. Collective intelligence, in the form of social bookmarking, makes del.icio.us the most popular site to find tagged links.