Wal-Mart is acquiring search engine Kosmix for $300 million, to boost its social and mobile commerce.

“We are expanding our capabilities in today’s rapidly growing social commerce environment,” said Eduardo Castro-Wright, Walmart’s vice chairman. “Social networking and mobile applications are increasingly becoming a part of our customers’ day-to-day lives globally, influencing how they think about shopping, both online and in retail stores. We are excited to have the Kosmix team join us to accelerate the development of our social and mobile commerce offerings.”

“The world of social media is exploding and for millions of consumers their social connections matter hugely in their daily lives,” said Anand Rajaraman, co-founder of Kosmix. “Our work has focused on developing a social genome platform that captures the connections between people, places, topics, products and events as expressed through social media — be it a feed, a tweet or a post.”

Kosmix started off as an alternative to Google.