it is an AOL company and looks and works very well. for free you get 5gb of storage (for pictures, documents or music. if you have a PC there are some very nice settings to allow very simple backup of things like your explorer favorites (though that feature does not work with Macs). some advances from when i looked at this years ago.
if you are looking for a solution to backup some basic data, look into xdrive. backing up basic data on a regular basis is a real good idea, and making it easy and quick is always a huge plus.