Issues that factor into the fluctuation of markets

1.

In 10 years, will Facebook still be so popular and so dominant? What competitors might overtake it? What are some substitute products for social networking sites such as Facebook? How are social media sites being integrated into business and even education?

2.

When we look at the issue of the ability of markets to function (hopefully well) what are some of the issues that factor into the fluctuation of markets, both on a domestic and global level? How does this affect us on a daily basis?