Abstract: A computer-implemented method of enabling participation by a first client and a second client in a communication session in a multi-dimensional virtual environment, the multi-dimensional virtual environment having first and second avatars respectively associated with the first and second clients and a plurality of objects distinct from the avatars. The method includes receiving from the first client a first annotation associated with a first object of the plurality of objects, transmitting the first annotation to the second client for display at the second client in association with the first object, receiving from the second client a second annotation associated with a second object of the plurality of objects, and transmitting the second annotation to the first client for display at the first client in association with the second object.

Abstract: A computer-implemented method of enabling participation by a first client and a second client in a communication session in a multi-dimensional virtual environment, the multi-dimensional virtual environment having first and second avatars respectively associated with the first and second clients and a plurality of objects distinct from the avatars. The method includes receiving from the first client a first annotation associated with a first object of the plurality of objects, transmitting the first annotation to the second client for display at the second client in association with the first object, receiving from the second client a second annotation associated with a second object of the plurality of objects, and transmitting the second annotation to the first client for display at the first client in association with the second object.

Abstract: A computer-implemented method of enabling communication between a first client and a second client mutually participating in a communication session, in which the second client, but not the first client, has an application for rendering multi-dimensional virtual environments, is claimed. The method includes transmitting to the second client information representing a plurality of objects in a multi-dimensional virtual environment, wherein the multi-dimensional virtual environment is rendered at the second client, and transmitting to the first client an image for display by a first client application in a web page, the image including a representation of the multi-dimensional virtual environment rendered at the second client. The second client has an application, distinct from the first client application, for rendering multi-dimensional virtual environments.

Abstract: A computer-implemented method of enabling participation by a first client and a second client in a communication session in a multi-dimensional virtual environment, the multi-dimensional virtual environment having first and second avatars respectively associated with the first and second clients and a plurality of objects distinct from the avatars. The method includes receiving from the first client a first annotation associated with a first object of the plurality of objects, transmitting the first annotation to the second client for display at the second client in association with the first object, receiving from the second client a second annotation associated with a second object of the plurality of objects, and transmitting the second annotation to the first client for display at the first client in association with the second object.

Abstract: A computer-implemented method of enabling communication between a first client and a second client mutually participating in a communication session, in which the second client, but not the first client, has an application for rendering multi-dimensional virtual environments, is claimed. The method includes transmitting to the second client information representing a plurality of objects in a multi-dimensional virtual environment, wherein the multi-dimensional virtual environment is rendered at the second client, and transmitting to the first client an image for display by a first client application in a web page, the image including a representation of the multi-dimensional virtual environment rendered at the second client. The second client has an application, distinct from the first client application, for rendering multi-dimensional virtual environments.

Abstract: A computer-implemented method enables participation by a plurality of clients in a first multi-dimensional virtual environment and a second multi-dimensional virtual environment. A first client sets an object in the multi-dimensional virtual environment system to function as a portal to a second multi-dimensional virtual environment. The portal can be used by the first client and/or the second client to enter the second multi-dimensional virtual environment. A server system receives from the first client data indicating that a first object in the first multi-dimensional virtual environment has been set to function as a portal to the second multi-dimensional virtual environment, and receives from a second client participating in the first multi-dimensional virtual environment data indicating that the second client has invoked the first object. The server system transmits to the second client data representing objects in the second multi-dimensional virtual environment.

Abstract: A computer-implemented method of enabling communication between a first client and a second client mutually participating in a communication session, in which the second client, but not the first client, has an application for rendering multi-dimensional virtual environments, is claimed. The method includes transmitting to the second client information representing a plurality of objects in a multi-dimensional virtual environment, wherein the multi-dimensional virtual environment is rendered at the second client, and transmitting to the first client an image for display by a first client application in a web page, the image including a representation of the multi-dimensional virtual environment rendered at the second client. The second client has an application, distinct from the first client application, for rendering multi-dimensional virtual environments.