I was thinking of buying a netbook so that when I go on my trip, I can still get on Facebook, send e-mails to my kids, and also download my pictures to Shutterfly each day, so I won't have to worry about running out of space on my memory card. Does anyone have one? Any suggestions or tips, or is it a waste of money? I would prefer that over a laptop simply because of the size and that it's lightweight. Thanks!