Key points are not available for this paper at this time.
he World-Wide Web has become an immensely popular and powerful medium in recent years. To attract more users, many Web sites offer personalized services, whereby users identify themselves and register their information preferences. On return visits, they conveniently receive a personalized selection of information. These personalized services, however, raise user concerns with respect to convenience and privacy.
Gabber et al. (1999) studied this question.