The New York Times has an interesting article titled Engineering Serendipity which looks at the some of the ways companies are trying to create felicitous and unexpected connections between their staff. After introducing what Yahoo! and Google are doing in the space, the article continues:

As Yahoo and Google see it, serendipity is largely a byproduct of social networks. Close-knit teams do well at tackling the challenges in front of them, but lack the connections to spot complementary ideas elsewhere in the company. The University of Chicago sociologist Ronald S. Burt calls these organizational gaps “structural holes.” In a 2004 study of 673 managers at the defense contractor Raytheon, Mr. Burt found that managers who serendipitously bridged such gaps were more likely to generate good ideas (and advance professionally as a result). “This is not creativity born of genius,” he wrote. “It is creativity as an import-export business.” In such cases, serendipity is the spontaneous plugging of these holes, over which good ideas flow.

The article describes some of the research being done in the space by measuring online and real-world interactions:
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