Having skimmed through the summaries, the general trend is they're trying to solve a non-existent problem, or a problem that isn't painful enough that people would be willing to pay to solve. I mean, who wants to pay for their Facebook statuses to be backed up? They're about as valuable as old voicemails and the threat of loss isn't palpable.
There's a lesson to be learned in all of this: don't think about ways to make money, but think about painful problems that you can solve for someone, and figure out whether a viable business can be created with that idea.
There's a lesson to be learned in all of this: don't think about ways to make money, but think about painful problems that you can solve for someone, and figure out whether a viable business can be created with that idea.