also, they made another acquisition, http://www.baycitizen.org/technology/story/inside-walmart-labs/ http://www.baycitizen.org/technology/story/inside-walmart-l

also, they made another acquisition, http://www.baycitizen.org/technology/story/inside-walmart-labs/ http://www.baycitizen.org/technology/story/inside-walmart-la... and bought Kosmix to improve their recommendation engine