Barnes & Noble's second quarter earnings weren't all good news for the company -- it reported a net loss of $6.6 million for the quarter and and an ever-so-slight dip in profits from $1.90 billion to $1.89 billion -- but it did have a fair bit to boast about on the technology side of things. Sales on its B&N.com website increased 17 percent year-over-year, totaling $206 million for the quarter, and the value of the company's Nook business (including devices and content) now stands at $220 million, up a full 85 percent. The company also revealed that its new Nook Tablet has been the fastest-selling Nook device to date, although it's no