Project Gutenberg is a website that creates electronic versions of famous books throughout time.  Over 100,000 titles can be read thanks to Project Gutenberg and their associates. 
 
Go to the Gutenberg Catalog to find books and audiobooks for download.  It's a little confusing at first, but worth it!  To begin, type in an author's name on the left such as "Jane Austen", or choose a category you are interested in (please note that recent authors still own the copyright to their books, so these are mostly historical authors).
 
With the Jane Austen example you will see a list of books and audiobooks.  Click on the link for Prind and Prejudice with the picture of the little audio speaker next to it.  Scroll down to where it says "Download this Audiobook for free".  To save time for now, skip the Readme file (which gives instructions) and the Index file (which describes the different chapters).  If you want to download the files, click on the link called "main site" for the next link in the list, which is Ogg Vorbis Audio.  If you just want to listen online, scroll down to the Apple iTunes section and choose the first link for "main site".  After a brief introduction you will hear:
 
"It is a truth universally acknowledged that a single man in possession of a good fortune must be in want of a wife."  Stiff true, still funny, and now it's free!
 
If you find the navigation difficult on the Guternberg website, just click on the top 100 downloaded books link and let other people figure out for you what makes popular reading.  Pride and Prejudice is number 4.  You'll also see Dracula, The Kama Sutra, Grimm's fairy tales, the Picture of Dorian Gray by Oscar Wilde, Ulysses by James Joyce, the Art of War, the Iliad, Alice in Wonderland, Machiavelli's The Prince, the Adventures of Huck Finn, A Tale of Two Cities, Wuthering Heights, and tons of other classics.
 
Dig in!