Net gain expanding markets through virtual communities john hagel john hagel iii arthur armstrong john hagel iii arthur g armstrong arthur hilary armstrong harvard business school press 1997 business economics 235 pages 2 reviews from the offerings of commercial on line services like the motley fool investment community to internet communities of book lovers who gather a . Net gain expanding markets through virtual communities 01 edition on amazoncom free shipping on qualifying offers. In addition his third book net gain expanding markets through virtual communities published by the harvard business school press 1997 has been on the business book bestseller list on the us and is currently being translated into ten languages his new book net worth shaping markets when customers make the rules will be published by harvard business school press in march 1999 . Click to read more about editions net gain expanding markets through virtual communities by john hagel iii librarything is a cataloging and social networking site for booklovers