Modelo is a startup that developed a browser based design tool which can be used for all sorts of collaboration.
The 3D design tool focuses on visualisation and collaboration. The founders Tian Deng and Qi Su are an architect and an industrial designer. They build the Modelo to bring the creative teams on projects together.
You can use Modelo for presentation purposes and also collaborate with other team members on the design of you project. Modelo is in beta test and you can sign up here for an account.
And you can also embed designs you made with Modelo to share designs not only with colleagues but also on the internet:
The design tool in action: