(To read a full comparison of the Nook and the Kindle, read Rich Jaroslovsky's review.)

NOOKThe Good: Includes an additional color screen, permits friends to borrow downloaded books from one another, and allows free browsing of entire books when the user is in a Barnes & Noble store.

The Bad: Slow to boot up, format text, and display it on the screen. Color screen and Wi-Fi connection drain battery life.

KINDLEThe Good: Lighter and faster than the Nook, it boasts longer battery life, and each of its features has been thoroughly tested in the market.

The Bad: The physical keyboard seems clunky and unnecessary. And it lacks some clever features, such as lending rights.

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