Need more space in your Dropbox?

Dropbox gives you some extra space for doing simple things:
Tweet about it
Share a message on Facebook

Invite friends to join Dropbox via your personal link (put it in your blog if you have one!). All friends can join Dropbox, not just the MFLTwitterati, it's great for backing up and having access to important files!

Download Mailbox App to your iOS device, link to Dropbox and you will get 1GB extra space. You can then delete it straight away but keep the space!
Read about it here