Excerpt: Enraptured by the possibilities the Internet offered to connect people and information since the 1980s, Chang worked to help businesses create knowledge databases that facilitated communication at all levels of a company to help them run more effectively. Using this model, Chang had an inkling this concept might work right here in Campbell. He envisioned connecting neighbors, not colleagues, and sharing thoughts, not business ideas.
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http://www.svcn.com/archives/campbellreporter/20041201/ca-neighbors1.shtml