2.2 Harnessing the Power of the Crowd
Web 2.0 services are characterized by the fact that their
value increases the more people are using it. A traditional
static Web site does not improve" when visited by large
amounts of surfers since it presents its content the same,
static way. In contrast, Web 2.0 sites use information pro-vided by the visitors explicitly (user contributions build up
the site or part of it) or implicitly (user activities on the site
are used for adapting its content or presentation).
The explicit and implicit harnessing of the power of the
crowd are best exemplied by Wikipedia and Amazon. In
the online encyclopedia Wikipedia, the user explicitly con-tribute to the encyclopedia by adding and editing articles.
In the online shop Amazon, collaborative ltering based on
the shopping behavior is used for making suggestions to the
customers. Each page describing an article contains sugges-tions of related products (Customers who bought this item
also bought . . . ").
What are the implications of the principle of harnessing
collective intelligence for education? First of all, in Web
2.0 services potentially large amounts of other users will ex-ists and active contribution is encouraged (see the previous
principle). Each user is therefore immediately a member of
a community with a low barrier to participate.
Constructivism sees learning as activity that takes place in
a social context [41]. Thus generally speaking, these innate
properties of Web 2.0 services are benecial for learning. An
obvious example is learning of a foreign language.
2.2 Harnessing the Power of the Crowd
Web 2.0 services are characterized by the fact that their
value increases the more people are using it. A traditional
static Web site does not improve" when visited by large
amounts of surfers since it presents its content the same,
static way. In contrast, Web 2.0 sites use information pro-vided by the visitors explicitly (user contributions build up
the site or part of it) or implicitly (user activities on the site
are used for adapting its content or presentation).
The explicit and implicit harnessing of the power of the
crowd are best exemplied by Wikipedia and Amazon. In
the online encyclopedia Wikipedia, the user explicitly con-tribute to the encyclopedia by adding and editing articles.
In the online shop Amazon, collaborative ltering based on
the shopping behavior is used for making suggestions to the
customers. Each page describing an article contains sugges-tions of related products (Customers who bought this item
also bought . . . ").
What are the implications of the principle of harnessing
collective intelligence for education? First of all, in Web
2.0 services potentially large amounts of other users will ex-ists and active contribution is encouraged (see the previous
principle). Each user is therefore immediately a member of
a community with a low barrier to participate.
Constructivism sees learning as activity that takes place in
a social context [41]. Thus generally speaking, these innate
properties of Web 2.0 services are benecial for learning. An
obvious example is learning of a foreign language.
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