34% of Start-ups are using search engine marketing

Kyemyung University Professor surveyed 260 start-ups about their internet marketing.
Search marketing is followed by PR & Advertising on the printed media(21.2%), email marketing(14.5%), image-based internet ads & affiliation(12.5%), posting ads on other message boards(12%)...
However some classification doesn't work that well in this case.

Digital Times...
벤처 34% "검색엔진 마케팅 활용"-[DIGITAL TIMES]