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: 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: 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: Communicating between electronic devices involves sending messages between the electronic devices. An original message having an original source indicator and an intended destination indicator identified is sent. A reply to that original message is sent by the recipient of the original message. The reply message has a reply source indicator and a reply destination indicator. A communication based on the reply message is sent. The communication based on the reply message has a reply source indicator that is the same as the intended destination indicator identified by the sender of the original message. In one example, a message is sent from computer operating an instant messaging program and forwarded to a mobile telephone. The reply sent from the mobile telephone is provided to the sender of the original message without revealing the telephone number of the mobile telephone to which the original instant message was forwarded.

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: 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: Linking multiple identities from a single service includes for a user of a single service having multiple identities within the single service, authenticating a primary identity having a first buddy list associated with an account, authenticating a secondary identity having a second buddy list associated with the account, and creating an association between the primary identity and the secondary identity, where the primary identity and the secondary identity simultaneously share a common graphical user interface such that the primary identity interacts with the first buddy list and the secondary identity interacts with the second buddy list using the common graphical user interface.

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: Communicating between electronic devices involves sending messages between the electronic devices. An original message having an original source indicator and an intended destination indicator identified is sent. A reply to that original message is sent by the recipient of the original message. The reply message has a reply source indicator and a reply destination indicator. A communication based on the reply message is sent. The communication based on the reply message has a reply source indicator that is the same as the intended destination indicator identified by the sender of the original message. In one example, a message is sent from computer operating an instant messaging program and forwarded to a mobile telephone. The reply sent from the mobile telephone is provided to the sender of the original message without revealing the telephone number of the mobile telephone to which the original instant message was forwarded.

Abstract: Communicating between electronic devices involves sending messages between the electronic devices. An original message having an original source indicator and an intended destination indicator identified is sent. A reply to that original message is sent by the recipient of the original message. The reply message has a reply source indicator and a reply destination indicator. A communication based on the reply message is sent. The communication based on the reply message has a reply source indicator that is the same as the intended destination indicator identified by the sender of the original message. In one example, a message is sent from computer operating an instant messaging program and forwarded to a mobile telephone. The reply sent from the mobile telephone is provided to the sender of the original message without revealing the telephone number of the mobile telephone to which the original instant message was forwarded.

Abstract: Communicating between electronic devices involves sending messages between the electronic devices. An original message having an original source indicator and an intended destination indicator identified is sent. A reply to that original message is sent by the recipient of the original message. The reply message has a reply source indicator and a reply destination indicator. A communication based on the reply message is sent. The communication based on the reply message has a reply source indicator that is the same as the intended destination indicator identified by the sender of the original message. In one example, a message is sent from computer operating an instant messaging program and forwarded to a mobile telephone. The reply sent from the mobile telephone is provided to the sender of the original message without revealing the telephone number of the mobile telephone to which the original instant message was forwarded.

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: 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.