Part I: This Voting system would print a list of whoever voted for who on a county website. A system like this would have both pros and cons. On the good hand, assuming whoever put the lists online were accurate and truthful and trustworthy, the results of the election would not really be in dispute. We would all know the correct results of the election and be able to research for some types of voter fraud.
On the other hand this would undermine the whole point of secret ballots. The secret ballot system was set up so that people could vote for whoever they want without fear or pressure from employers, family members, or politicians. People voting for certain controversial candidates could be targeted and scared out of voting for them.
Part II: I know a lot about the commerce that goes on with private data. Just recently, Twitter sold a billion tweets to advertisers. Facebook routinely sells all of its users private data to advertisers as well. In fact, even your Google search results are different based on your web history. A big concern besides from the fact that hundreds of companies knowing more of my personal information than banks do is security. It may be tough to hack into Facebook’s servers, but once your information goes to 100 places, there are 100 times more sites that can be hacked to get your information. And perhaps these sites’ security are not as good as Facebook’s security.