Almost all the books that I need can be found on scribd

easy to just start listening on your computer without having to download the file etc I like the save for later option making it easy to keep track of what you want to read / listen to later. Great selection of whats recommended for you based on what you've borrowed.

It is a great tool in which I can have my documents written in PDF or web pages that I consider important, I can adapt it to several formats and open in several operating systems, it is really interesting because it is like a virtual library where you can save all the readings of my interest and share them with whoever you want at the time you want in a very easy way