What and where would be the best way to market ones published books on the internet for free and what are your...

I can think of One place, lulu.com. It's great and free! You can even purchase your published works in hard back. I love them and think every writer should try them out. I've written several books and published them on this sight. It's a great way to see and be seen and the tools are very user-friendly. In addition, you can publish privately or publically and allow only those you wish to see your work. I highly recommend them.