The present invention is related to an information processing system, a
service providing apparatus and method, an information processing
apparatus and method, a recording medium, and a program that are intended
to simultaneously share content data in private virtual spaces. A home
server 11 is arranged at user A's home. A portable user terminal 1 and so
on can access the home server 11. A virtual home DB server 21 supplies
the layout information about virtual home and so on to the portable user
terminal 1. An authentication server 22 executes authentication
processing on the portable user terminal 1. An inter-user-terminal
communication relay server 23 executes the processing associated with the
communication between a plurality of users. A user information holding
server 24 stores the personal data of each user and the content data,
which are shared with other users. The present invention is applicable to
programs realizing realtime communication by use of the Internet.