E-book sales are skyrocketing. For many retailers, sales are outpacing those of traditional books. Barnes & Noble now sells three times as many e-books as traditional ones online. You can read e-books on computers and smartphones. But to really enjoy them, you'll want a dedicated e-reader.

There are many options when it comes to e-readers. New models are released regularly, as manufacturers seek to cash in. And prices are falling rapidly. It would be impossible to cover all models here. So, I will tell you about some more unique options. Incidentally, tablets like the iPad 2 handle e-books. However, I am omitting them, as the comparison would be unfair.