I searched on YahooAnswers and saw a lot of people asking where to get free books from for the kindle. There were a lot of websites suggested that have free books. My question is, how do you get these on your kindle?? I went to the kindle store and wasn’t able to sort by price (which was another suggestion). Do I need to hook my kindle up to my laptop? Help!!!
Just see here on how to put the books on your Kindle. If the books are free, you don’t have to pay for them:
http://www.amazon.com/gp/redirect.html?ie=UTF8&location=http%3A%2F%2Fwww.amazon.com%2Fgp%2Fhelp%2Fcustomer%2Fdisplay.html%3Fie%3DUTF8%26nodeId%3D200375550&tag=moreinfo-po-20&linkCode=ur2&camp=1789&creative=390957
And some free books and very cheap books can be found or mentioned here:
http://www.amazon.com/gp/redirect.html?ie=UTF8&location=http%3A%2F%2Fwww.amazon.com%2Fs%3Fie%3DUTF8%26node%3D154606011%26redirect%3Dtrue%26p%255F36%3D0-0&tag=moreinfo-po-20&linkCode=ur2&camp=1789&creative=390957
http://www.speedreaderxreview.com/is-kindle-2-worth-the-price
Hope it helps 
Kobo Books: http://www.kobobooks.com/
References :
From the Kindle store you can just send it to the kindle wirelessly after you ‘purchase’ the free book.
To download books from other websites you need to plug your kindle into the USB drive and move the file into the documents folder on your kindle.
References :
Just see here on how to put the books on your Kindle. If the books are free, you don’t have to pay for them:
http://www.amazon.com/gp/redirect.html?ie=UTF8&location=http%3A%2F%2Fwww.amazon.com%2Fgp%2Fhelp%2Fcustomer%2Fdisplay.html%3Fie%3DUTF8%26nodeId%3D200375550&tag=moreinfo-po-20&linkCode=ur2&camp=1789&creative=390957
And some free books and very cheap books can be found or mentioned here:
http://www.amazon.com/gp/redirect.html?ie=UTF8&location=http%3A%2F%2Fwww.amazon.com%2Fs%3Fie%3DUTF8%26node%3D154606011%26redirect%3Dtrue%26p%255F36%3D0-0&tag=moreinfo-po-20&linkCode=ur2&camp=1789&creative=390957
http://www.speedreaderxreview.com/is-kindle-2-worth-the-price
Hope it helps
References :
Amazon doesn’t limit you to only reading books purchased from the Kindle store. Project Gutenberg (gutenberg.org) has over 30,000 English books free for download instantly, already in the .MOBI format for reading on the Kindle. All you have to do is download the ones you want and copy them over to the Documents folder on your Kindle while it’s plugged into your USB cable. Note: you can also search Google for free eBooks (books.google.com).
You can search Amazon for free Kindle books too! In Amazon, set the search type to "Kindle Books" and search for "-domain" (without the quotes). You’ll get a list of free Kindle books that can be wirelessly delivered to your Kindle!
References :
http://thepemberton.com/posts/archives/27