Innovation

Tech nostalgia: The top 10 innovations of the 2000s

Wikipedia

Launched in January 2001, Wikipedia played a major role in defining the concept and purpose of user-generated content. There are now 200 versions of Wikipedia and millions of articles.

Image: Wikipedia

By Conner Forrest

Conner Forrest is an analyst for 451 Research. He was formerly a Senior Editor for TechRepublic.