Here are some completely legal ways to get free ebooks!
Amazon UK's Top 100 Free Ebooks - You can sort by genre to find what suits your interests and it's updated hourly.
Freebooksy highlights notable free ebooks from Amazon.
Project Gutenburg is a treasure trove of classic books, poems and plays for free.
It has Austen, Dickens, Shakespeare, Joyce and almost any other classical author you can think of.
Check the top 100 to see the famous names.
Librivox is where volunteers read classic works and release them as free audiobooks.
Here's the list of their most popular audiobooks and staff picks from the last few years.
Digital Comic Museum has many vintage comic books to download.
Read Online only
Classic reader has many classic works for free.
Poem Hunter has many famous poems online.
The Complete Works of William Shakespeare.
A massive list of even more sites can be found here.