Check out SimScale, a very cool web-based platform that uses OpenFOAM as its backend. The free service for academics provides 32 cores, 50 GB of storage, and 1000 core hours/month.. pretty good for £0! At the moment it doesn't seem to support mdFoam or dsmcFoam, but it can handle traditional CFD. There are quite a few simulations shared by the SimScale community to have a play with.
A similar sort of platform would massively extend the outreach of our codes.