Kindle anyone?

I think most people in general knows how to buy a Kindle book or order anything online but as far as publishing their own Kindle book, they have no idea how to. Just the thought of actually write a book, even a short one, probably scares most people off. However, if they did, since publishing now is free and only requires a little bit of effort, they could have a nice little side income be it only $30-$40 a month.

I do not really see how you could make anything more than that but I am also a total newbie to the whole Kindle phenomenon.

Any input would be greatly appreciated,

Eva