A system configured to provide one or more virtual spaces that are accessible to users. A given virtual space may include a plurality of places. Individual places within the virtual space may have spatial boundaries. The places may be differentiated from each other in that a set of parameters and/or...http://www.google.com/patents/US20090077475?utm_source=gb-gplus-sharePatent US20090077475 - System for providing virtual spaces with separate places and/or acoustic areas