Korea SEM - Search Engine Marketing Company OSO Co,.Ltd

naver: Naver is the biggest search portal in Korea with more than 70% of the market share.
Naver has already begun to provide 14 different types of searches (like Web, paid, image, news, book, blog, knowledge, etc.) before Google launched its universal search. Knowledge search based on its accumulated and enormous database is one of the factors lending it a competitive edge.
Naver search ad types: Power Link (CPC), PlusPro (CPM with image and text), CPC from Overture (Yahoo! search marketing), and SMO (blog marketing, knowledge search marketing)

Daum: Daum is the second largest portal site, which holds 12% of the market share.
Daum’s UGC stream media (video) and Café (social community) are two strong advantages over its competitors.
Daum search ad types: CPC from Google Adwords, CPM ad, and SMO (blog marketing, café marketing)

Yahoo Korea: Yahoo! is the third largest portal in Korea with 6% of the market share.
Yahoo! search ad types: CPC from Overture, CPM ad, and SMO (blog marketing, multimedia search)

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Nate: Although Nate has less than 1% of the market share, its subsidiary site Cyworld has become the world’s most visited social networking site. Cyworld has been accessed by 24.2 million unique users (nearly half the Korean population), and nine in ten Koreans in the age group of 20 to 30 have an account on the site.
Due to its recent unification with Empas, its market share has been increasing gradually.
Nate search ad types: CPC from Overture, CPM ad, and SMO (blog marketing)

Empas: The portal site Empas is ranked fourth with 2% of the market share. Its unification with Nate is accelerating the development of a new search system.
Empas search ad types: CPC from Google, CPM ad, and SMO

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