If you use the popular sync application Dropbox, you probably are dying for some free extra storage! If you haven't heard of this amazing service, sign up here! Luckily for you, Dropbox offers the referral program which can earn you 250 MB of free space if you have a regular account and 500 MB if you have a .edu address associated with your account. Learn more here.
In this thread, you can submit your Dropbox referral link in the comments below. This way, all of us can benefit and receive free storage!