Wikipedia Interactive Learning

http://en.wikipedia.org/wiki/E-Learning
http://en.wikipedia.org/wiki/Virtual_learning_environment
http://en.wikipedia.org/wiki/Constructivism_(learning_theory)
http://en.wikipedia.org/wiki/Interactive_whiteboard

The above is a list of easily accessible online resources through wikipedia search.

The advantage of having online resources such as wikipedia readily available, are in my opinion paramount to a students 21st century learning capabilities. Wikipedia allows a student easy access to an extemely large database of volumised, comprehensive information. However, even though the content is governed heavily, there is room for factual error in comparison to standardised texts.