The online storage service Dropbox is giving away an extra 3GB of free storage to college students who sign up for the service between now and December 10, 2012. This means that students who sign up using their university/ college email addresses will get 5GB of total storage for free.

The extra free storage is part of Dropbox’s Space Race promotion. To get the free storage students do need to be at an institution that has at least 25 Dropbox users. So if you’re a student who wants to make sure that you get the free storage you need to refer classmates to Dropbox.