There is an interesting article on 3D printing of artifacts with a structured, inhomogeneous interior in CAD Journal. A team out of Turkey shows how the interior is decomposed into cells defined by a 3D Voronoi diagram and their sites. The slicing algorithm capitalizes on this coherence and minimizes print head moves that do not deposit material. This approach has been implemented on a client/server architecture that computes the slices on the geometry side. The slices are printed by fused deposition, and are communicated upon demand.
If you are looking for a solution to communication between disparate teams during your CAD project, there are a variety of option from GitHub to Skype. However, I find it is sometimes best to simply have your own web server where you can customize things to your need. Short of having your own server, a cheaper solution is to use shared web hosting. For this purpose I like HostGator, as they typically have the features I need installed by default on even their most basic packages (more info on their packages here). I am sure some other shared web hosts would suffice as well. Feel free to leave your favorite web host in the comments.