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Facebook now allows advertisers to target users based on their workplace, major, and keywords — which can include a job title. Smart. What's odd is that Microsoft bought a full-page ad in the San Jose Mercury News in order to poach Yahoos, instead of creating a Facebook ad targeting software engineers with computer science degrees living in Sunnyvale and working at Yahoo, ages 30 to 45. What does $240 million for a 1.6 percent stake in Facebook get you these days, if not a basic tutorial on how to use the company's products?