Abelson, Robert, 185

accounts; see also requests, 40, 122, 244

actor:

actor, 3, 11, 22, 60, 61, 64–68, 76, 78, 80, 85, 94, 116, 120–122, 125, 127, 129, 134, 137, 141, 173, 183, 186, 187, 191, 193, 198, 212, 213, 219, 222, 243–245

category, 123, 127, 128, 245

central, 63, 64, 66, 82, 116, 120, 125, 134, 135, 137, 146

centrality, 67, 84, 94, 104, 117, 146

level, 64, 66, 67, 74, 75, 78, 80–82, 94, 112, 146

star, xxvii, 3, 4, 63, 64, 115, 117, 120, 122, 123, 125, 129, 130, 132–137, 140–142, 145–148, 219, 220, 245

Adamek, Margaret, 24

advice, xxv, xxvi, 2, 12, 45, 47, 53, 54, 155, 162, 174, 176, 177, 183, 226, 232, 244

affirmation/validation, 2, 32, 33, 37, 41, 44–46, 52, 53, 181

age, 9, 21, 175

Alvarez, Anthony, 224

Anderson, Jeffrey, 19

Andrews, Dorine, 19

Aneshensel, Carol, 7

anonymity, xxv, 228, 243, 244

antisocial, 20

Antonucci, Toni, 10

archive, 22, 23

Avery, Dona, 22

asymmetric tie; see also tie, 182–185, 187, 207–211, 213

Barak, Azy, 14

Bargh, John, 14, 24

Baron, Naomi, 19, 56, 218

Baym, Nancy, 14, 16, 19, 20, 54, 56

Berkman, Lisa, 1, 5, 7–11

betweenness; see also centrality, 65

Blair, R.Clifford, 185

Boberg, Eric, 14, 16, 225

Boorman, Scott, 75

Borgatti, Stephen, 61, 75, 124, 125, 198

Braithwaite, Dawn, 31–35, 244

Breiger, Ronald, 75

Brennan, Patricia, 14

Breslow, Lester, 1, 5, 8, 9

Bresnahan, Mary, 40

Brissette, Ian, 1

broadcast, 18, 22, 61, 160, 172, 182, 183, 186, 189, 214, 246

buffer hypothesis; see also hypothesis, 6–8, 13, 150, 154

Burrows, Roger, 24, 32

Butler, Brian, 55, 220

Campbell, Karen, 164