1. Download the most popular ebook/ebooks you can find.  Look for all the urls in the ebook.  You are going to edit the pdf file and put your own shortened urls in place of the original urls.

2. Go here to get the best pdf editor: http://binbox.io/1Y2he#OQdn4Iiw

3. So edit your pdf files and place your adfly/coinurl/shorte.st urls in there in place of the original urls.  If there are affiliate links, replace them with yours.

4. Spread the newly edited ebook and make more $$$

Simple :)