BarnesandNoble.com was one of the biggest boosters of e-books. But the company has shut down its e-book division. “BN.com’s decision comes at a time when e-book sales are reported to be steadily growing, the number of retail outlets for e-books is increasing and a host of new reading devices are entering the market. It was BN.com, in collaboration with Microsoft, that led the push to sell e-books when it launched an e-book superstore in 2000.”