I know of oohsah which offer 1TB of free storage online but I have never used it so I'm not sure how good they are. Well of course they are free so it's worth giving them a try. But I would definitly keep what gbjuno said in mind especially since they are free.http://www.oosah.com/
Oh yeah it's still in beta so ????????? I do plan on trying it out soon but I will just put unsensitive data up there.