I am living proof that you don't need that much to make this kind of thing happen. Notepad and a modem are all we need. I would be able to share ways to moderate a global project. This is an excellent idea. Students and mentors communicate about a topic using e-mail.
Students write to engineers in Antarctica about their work in satellite tracking at the South Pole.
You can see the progression. My students and I spent a year writing to 2 men who did a winter-over in Antarctica. One came to see us before he left for the ice, right after his Christmas R and R back in the States and at the end of the year both men came to Delmar and visited with us. The last one will bring a lump in your throat. When Matt came to Delmar we went to several schools to get these boys.