Here is the table of contents of "Community in the Digital Age: Philosophy and Practice" a book I've put on reserve at the library: Most relevant seems to be the introductory material (p. 1-30), Borgman's article on p. 53, Dreyfus article on p. 69, and the articles in Part III on "The Democratic Potential of the Internet" starting on p. 183.

Ned Hettinger