... 2 Social media marketing conference Hanoi Feb 2012TUAN HA – CEO VINALINK MEDIA VIETNAM SEO CLUB Presidentwww.vietseo.vn – www.vinalink.com Tài liệu chia sẻ tại http://slideshare.net/vinalink ... companies using FACEBOOKFACEBOOK, 58% using LinkedInLinkedIn, 40% using TwitterTwitter, 26.8% using YoutubeYoutube for business (Source: MCI - Circle Merchant Confidence index April ... companies using FACEBOOKFACEBOOK, 0.07% using Youtube,Youtube, Only 0.2% using LinkedInLinkedIn, TwitterTwitter, and Other Vietnam SN Other Vietnam SN for businessfor business22. Social...