Whether it's local or from the Web, there are several ways to get data into R for further work.
Stories by Sharon Machlis
Prophet is aimed specifically at business problems such as computer infrastructure capacity planning.
The Web app has much more power, but the mobile version can be useful for analyzing tweets, for instance.
Facebook's IPO was considered an early bust while Twitter's has been deemed a success. In terms of orderly market activity, that's without question. But what about prices?