Interactivity

Across the many fields concerned with interactivity, including information science, computer science, human-computer interaction, communication, and industrial design, there is little agreement over the meaning of the term interactivity. Multiple views on interactivity exist. In the `contingency view` of interactivity, there are three levels: On.....
Found on http://en.wikipedia.org/wiki/Interactivity

Interactivity

If your web site isn't interactive, it's dead.
Found on http://www.superglossary.com/Glossary/Business/Internet_Marketing/
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