Wal-Mart Buys Social Media Platform Kosmix by Lance Turner Posted 4/19/2011 07:55 am Updated 3 years ago Wal-Mart acquires social and mobile media platform Kosmix of Mountain View, Calif. A Wall Street Journal site says the retailer paid $300 million. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access stories older than 20 days. Purchase Now Already have archive access? Login to view this article.