As same manner as Sametime Click-to-Sametime Meeting, Click-to-3rd Party Web Meeting will be useful. Personal Meeting Room is common in Web based Cloud Meeting Service. URL will be stored in Person Document in Domino or LDAP attribute, and Administrator can map the attribute to Click-to-Meeting URL. Or store personal meeting URL in Notes/Sametime Preference and send URL to chat participants. Sorry to say but Sametime Meeting is not major in the world so expansion of Click-to-Meeting is mandatory necessary in this cloud generation.