Get ready to have your preconceived notions of email destroyed. In a Facebook blog post today, the company has gone to great lengths to bury the lede -- which, essentially, says that it's experimenting with the idea of letting non-connected users pay in order to have a message routed to one's inbox instead of that ill-fated "Other" folder. According to the company, it's being dubbed a "small experiment" to "test the usefulness of economic signals to determine relevance." As an excuse, Facebook has evidently consulted with "s
