NASA has a project out to collate the best and brightest new data on Mars and make it available to the general public in a way that allows them to perform real research. Be A Martian, which has its own facebook page, youtube channel and twitter feed, takes the path of putting you onto a virtual Mars as a virtual citizen, where many a citizen scientist project awaits you, all under the auspices of the Red Planet.
Another group of people undergoing a virtual mission to Mars are the Mars500 volunteers, presently locked away in a simulated Mars bound spaceship, actually just outside Moscow. The latest video diary from the project is here.
Finally, another Martian simulation, this time from the BBC archives. Some footage explaining how Mars rocks get blasted to Earth.