Abstract: Controlling the volume of an audible alert associated with an instant messaging communications session includes rendering, on a first instant messaging user system, an instant messaging application user interface for an instant messaging communications session involving at least a first instant messaging user and a second instant messaging user, receiving notification of an event related to the instant messaging communications session, determining a characteristic of the event, accessing an audible alert to be rendered to signal existence of the event, adjusting based upon the determined characteristic of the event a volume of the audible alert corresponding to the event, and rendering the audible alert to signal existence of the event.

Abstract: Controlling the volume of an audible alert associated with an instant messaging communications session includes rendering, on a first instant messaging user system, an instant messaging application user interface for an instant messaging communications session involving at least a first instant messaging user and a second instant messaging user, receiving notification of an event related to the instant messaging communications session, determining a characteristic of the event, accessing an audible alert to be rendered to signal existence of the event, adjusting based upon the determined characteristic of the event a volume of the audible alert corresponding to the event, and rendering the audible alert to signal existence of the event.

Abstract: A graphical user interface on a display device of a computer enables communications using a computer service. The graphical user interface includes a list of potential message recipients selected by a user as significant to the user. The graphical user interface also includes a mobile device identifier associated with one or more of the listed potential message recipients and a user account identifier associated with one or more of the listed potential message recipients. At least one of the listed potential recipients includes a mobile device identifier as the only available conduit for data delivery to the potential message recipient using the computer service.

Abstract: A graphical user interface on a display device of a computer enables communications using a computer service. The graphical user interface includes a list of potential message recipients selected by a user as significant to the user. The graphical user interface also includes a mobile device identifier associated with one or more of the listed potential message recipients and a user account identifier associated with one or more of the listed potential message recipients. At least one of the listed potential recipients includes a mobile device identifier as the only available conduit for data delivery to the potential message recipient using the computer service.

Abstract: Controlling the volume of an audible alert associated with an instant messaging communications session includes rendering, on a first instant messaging user system, an instant messaging application user interface for an instant messaging communications session involving at least a first instant messaging user and a second instant messaging user, receiving notification of an event related to the instant messaging communications session, determining a characteristic of the event, accessing an audible alert to be rendered to signal existence of the event, adjusting based upon the determined characteristic of the event a volume of the audible alert corresponding to the event, and rendering the audible alert to signal existence of the event.

Abstract: Perception of a personalization item is enabled in an instant messaging communications session by rendering, on an instant message recipient system, an instant messaging application user interface for an instant messaging communications session involving at least an instant message recipient and an instant message sender. An identifier that enables identification of a personalization item of an individual instant message user is obtained, and the identifier is associated with the personalization item. The personalization item is obtained independently of the message used to obtain the identifier, and the personalization item is rendered at the instant message recipient system.

Abstract: Controlling the volume of an audible alert associated with an instant messaging communications session includes rendering, on a first instant messaging user system, an instant messaging application user interface for an instant messaging communications session involving at least a first instant messaging user and a second instant messaging user, receiving notification of an event related to the instant messaging communications session, determining a characteristic of the event, accessing an audible alert to be rendered to signal existence of the event, adjusting based upon the determined characteristic of the event a volume of the audible alert corresponding to the event, and rendering the audible alert to signal existence of the event.

Abstract: Perception of a personalization item in an instant messaging communications session may be enabled by perceiving an identifier corresponding to an intended instant message recipient designated by an instant message sender system, accessing personalization items corresponding to the perceived identifier, and making perceivable the personalization items corresponding to the received identifier to the instant messaging sender system for rendering in an instant messaging application running on the instant messaging sender system, where the personalization items are made perceivable prior to communication with the intended instant message recipient.

Abstract: Perception of a personalization item in an instant messaging communications session may be enabled by perceiving an identifier corresponding to an intended instant message recipient designated by an instant message sender system, accessing personalization items corresponding to the perceived identifier, and making perceivable the personalization items corresponding to the received identifier to the instant messaging sender system for rendering in an instant messaging application running on the instant messaging sender system, where the personalization items are made perceivable prior to communication with the intended instant message recipient.

Abstract: A graphical user interface on a display device of a computer enables communications using a computer service. The graphical user interface includes a list of potential message recipients selected by a user as significant to the user. The graphical user interface also includes a mobile device identifier associated with one or more of the listed potential message recipients and a user account identifier associated with one or more of the listed potential message recipients. At least one of the listed potential recipients includes a mobile device identifier as the only available conduit for data delivery to the potential message recipient using the computer service.

Abstract: Controlling the volume of an audible alert associated with an instant messaging communications session includes rendering, on a first instant messaging user system, an instant messaging application user interface for an instant messaging communications session involving at least a first instant messaging user and a second instant messaging user, receiving notification of an event related to the instant messaging communications session, determining a characteristic of the event, accessing an audible alert to be rendered to signal existence of the event, adjusting based upon the determined characteristic of the event a volume of the audible alert corresponding to the event, and rendering the audible alert to signal existence of the event.

Abstract: Perception of a personalization item is enabled in an instant messaging communications session by rendering, on an instant message recipient system, an instant messaging application user interface for an instant messaging communications session involving at least an instant message recipient and an instant message sender. An identifier that enables identification of a personalization item of an individual instant message user is obtained, and the identifier is associated with the personalization item. The personalization item is obtained independently of the message used to obtain the identifier, and the personalization item is rendered at the instant message recipient system.

Abstract: Perception of a personalization item in an instant messaging communications session may be enabled by storing on a host system one or more personalization items associated with an instant messaging application operator, receiving a request from an instant messaging participant system for the personalization items associated with the instant messaging application operator, accessing the personalization items at the host system, and communicating the personalization items from the host system to the instant messaging participant system for rendering in an instant messaging application running on the instant messaging participant system.

Abstract: Perception of wallpaper in an instant messaging communications session may be enabled by rendering, on an instant message recipient system, an instant messaging application user interface for an instant messaging communications session involving at least one instant message recipient and an instant message sender, receiving a message that includes a text message and wallpaper to be displayed by the IM recipient when perceiving the text message, the wallpaper being selected by the instant message sender system, and rendering the wallpaper at the instant message recipient system when rendering another portion of the message.

Abstract: Perception of a personalization item in an instant messaging communications session may be enabled by perceiving an identifier corresponding to an intended instant message recipient designated by an instant message sender system, accessing personalization items corresponding to the perceived identifier, and making perceivable the personalization items corresponding to the received identifier to the instant messaging sender system for rendering in an instant messaging application running on the instant messaging sender system, where the personalization items are made perceivable prior to communication with the intended instant message recipient.