Make new friends, but keep the old: recommending people on social networking sites.

Jilin Chen Werner Geyer Casey Dugan Michael J. Muller Ido Guy Make new friends, but keep the old: recommending people on social networking sites. 201-210 2009 CHI http://doi.acm.org/10.1145/1518701.1518735 conf/chi/2009 db/conf/chi/chi2009.html#ChenGDMG09