22. The method of claim 21 , further comprising: using the social review session created by the chat, audio and/or video conferencing application on the first computer to exchange annotations made by the first user on the view of the CAD model in the CAD application on the first computer to annotate the view of the CAD model in the application on the second computer, by passing the annotations to the chat, audio and/or video conferencing application, to cause the chat, audio and/or video conferencing application on the first computer to transmit the annotations over the social review session to the chat, audio and/or video conferencing application on the second computer, to have the annotations shown on the view of the CAD model on the second computer.
21. A method for social review of computer aided design (CAD) projects, comprising: executing a CAD application on the first computer; in response to selection of interface elements in the CAD application by a first user, causing a separate chat, audio and/or video conferencing application on the first computer to create a social review session with a chat, audio and/or video conferencing application on the second computer; and using the social review session created by the chat, audio and/or video conferencing application on the first computer to synchronize the first user's view of a CAD model in the CAD application on the first computer with a second user's view of the CAD model in an application on the second computer, by passing indications of the first user's view of the CAD model from the CAD application on the first computer to the chat, audio and/or video conferencing application on the first computer, to cause the chat, audio and/or video conferencing application to transmit the indications of the first user's view of the CAD model over the social review session to the chat, audio and/or video conferencing application on the second computer, to update the view of the CAD model on the second computer.