I was reading the thread where one of ours lost a lot of files, including two novels from his hard drive. JA Konrath mentioned 'internet backup' - so I went poking around.

I found a number of free ones and I was wondering, from those who know these things, what are the down sides of using something like:

http://www.drivehq.com/backup/

or

http://www.xdrive.com/

It sounds terrific. I'm pretty good about backing up my writing, but not without occasional lapses.

So tell me, those who know, what's the scoop?