ciphergoth has made an epub version of Eliezer's posts, which can be read with iBooks on the iPad (or iPhone, iPod Touch). I would recommend this over a PDF version, as you cannot adjust line lengths with PDFs. I've been reading the sequences in this way recently. Before discovering this, I used the Instapaper app to save the LW web pages.
Appropriate for this forum: Why Philosophers Should Care About Computational Complexity by Scott Aaronson
Ugh. If you're going to read that, perhaps also read the other papers mentioned here: < http://stellar.mit.edu/S/course/6/fa11/6.893/index.html >.
Computer Science, including AI - University of Cambridge Computer Lab Tech Reports http://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-table.html
http://www.e-booksdirectory.com/
http://www.intechopen.com/books and http://www.intechopen.com/journals
And National Academies Press - http://www.nap.edu
You will find lots of interesting books, no matter what your specific interests are.
If you go to 4shared, you can find a lot of PDF books that have seen prominent mentions or recommendations around here. For example:
Gödel, Escher, Bach
Probability Theory: The Logic of Science
The MIT Encyclopedia of the Cognitive Sciences
How the Mind Works
The Nature of Rationality
Good and Real
The Strategy of Conflict
You can also take a look at Bostrom's or Hanson's papers, or at SIAI's list of publications. They are pretty interesting.
The GEB pdf seems to have a lot of OCR errors. If anyone has read the pdf -- is it worth reading despite the errors?
The page with the DJVU is asking for a password.
First and foremost, textbooks. I cannot emphasize enough how useful the iPad is vis-a-vis reading on a computer for any long-form material. If you've been putting off sequences, now is a good time as well.
Several of Greg Egan's stories are available online for free.
If you're interested in long-form journalism, here's a list of recommendations for recent articles and here are some recommendations for classic articles.
The appropriateness of the post depends entirely on the set of answers asked after. It is therefore incumbent on LessWrongians to answer with PDFs which are rationality-enhancing or which explore its associatd issues.
I just got an iPad, which means that for the first time in my life it's convenient for me to read long documents from the internet. I've often looked at things and thought, oh, if I ever have some capability to read that, I should. However, I haven't made a list.
So. What documents in pdf form, or long websites, should I read now that I can? Any recommendations?
EDIT: Thanks for the advice. I'm particularly excited to read Godel, Escher, Bach. I've also downloaded the ePub of the Sequences, and I'm going to certainly look at Strategy of Conflict. Thank you very much for the links.