I personally think the Kindle 3 is better. But the nook looks better. But like the saying says don't judge a book by it's cover.
Here are the reasons why there different.
-Kindle is in black and white, while the nook has color
-The nook is touch screen while the kindle is not
-If your friend has a nook you could borrow books from each other with your nook. It's like a blue tooth only you won't have the book when it's borrowed.
-You can read books free with the nook for a whole hour at any barnes and noble store.*I also found out you can do that with a kindle too.
They both have wireless and Mp3 which is a plus, because I love music while I read.
-Kindle has text to speech
-Webster dictionary when you get stuck on a word
-Over 1,000 free ebooks most are classic
-Read a free chapter digially from your kindle in sixty seconds.
-Buy a book instanly with your kindle
-Have up to 3,500 books downloaded
-The screen is in black and white like paper. And it comes in two different colors graphite or white
-The kindle screen doesn't strain your eyes while you read like a computer does over time
-The battery can last for a whole month without using it. (You will still have to charge it even if you don't use the wireless)
-1 year warranty if something happens to your kindle.