Description:Stefan Weitz, Director of Bing, the new search engine from Microsoft, says that internal research has found that users develop a "habit" with their search engine of choice.In the first of a two-part interview with with Beet.TV, he does not refer to Google by name, but clearly referenced it. He said that gaining market share in search is a "long term play" and getting users to switch is not easy. Citing internal Microsoft research, he said that using a search engine becomes(5:34)