The uber-e-tailer that never forgets its bookstore roots. The new print-on-demand service means customers can now order out-of-print, backlist and large-print books from several big publishers. Soon it will start selling DRM-free MP3s (meaning you can copy the songs for personal use and download them to any device) from EMI and other labels out of its new music store (iTunes already does). And, if the rumors are true that Amazon is in talks to buy Netflix before long it could own the market on movies, both digital downloads (through its Unbox service) and rent-by-mail. From handbags to hand vacs, Amazon really is a great place to shop for virtually anything, even shoes, though Zappos.com still has the edge there. And before you check out, it doesn't hurt to see whether Overstock.com has any of the same items on special.