One of the most popular rock bands of all time has finally managed to offend--not for its songs, but for how it sells them. There's a lesson here in technology, new business models, and hidebound "progressives." The first new album from the Eagles in over a decade, "Long Road Out of Eden," has already sold more than a million copies, hitting Billboard's #1 in its first week. It's the kind of blockbuster that used to pay Christmas bonuses at the big record companies, only this album wasn't produced by a big record company. The Eagles released it themselves and are...