The User-created content means on-line content which are produced by Internet users by forum or bulletin board system as opposed to copyrighted contents. This term was originated by one of korean portal sites, Daum since 1999. In that time, there were few Online contents. Many korean web sites focused on gathering user activities. So there has developed various bulletin board system such as CrazyWWWBoard, ZeroBoard in Korea. Daum Cafe was success story of the largest online community service. From now on it has 600 million forums and 2.1 billion articles by 22 million users in Korea.

Recently it was born Ohmynews, an online citizenship newspaper and Cyworld, social networking site with photo blogging tools and Naver KnowledgeIN, user-contributed Q&A search benchmarked by Yahoo! social search. It evolves a proposal system of online round-robin (Daum Agora), sharing episode of TV drama and show, parody of image and video generated by users in Daum TVZone.

The term, UCC is almost same with UGC(User-generated content), but UCC is older than UGC made in 2005 by trend of Web 2.0. It means korean’s users activity was very strong in cyber space by the fast broadband penetration.

Examples of UCC
- His special proposal
As following is one man generated video to find a girl on TV. It was spreaded out online video sites and was famous in Korea. Daum was made this episode as TV advertisement.

- Parody of Drama actors mixing with US actors (source)