The p3d.in team has launched its self-titled online model display service in open beta.
P3d.in enables users to upload models to the site in OBJ format and view them interactively through any web browser that supports WebGL. Models can currently be viewed in wireframe, flat-shaded or composite modes, with further shaders and support for textures currently in development.
Users can then invite friends or clients to view the assets privately; or embed the HTML viewing code in their own site. Since the system is WebGL-based, no special plugins are required to view the models.