Here's a fun way to get virtually any PDF you want (though it can be applied to pretty much any type of file). It basically takes advantage of how stupid ebook publishers are by not securing their download pages/links. All it takes is one person to backlink to the downloads page, and Google indexes the location of the PDF and makes it available to anybody. Even if the creator does protect it, it doesn't stop their customers from uploading the PDF somewhere. A lot of the results I show below are hosted on completely different domains (i.e. customers uploading their ebooks to a storage folder on their hosting account for reference, etc). Step 1: Identify the File You Want For example purposes, I'm going to pull a random site off clickbank, let's say "Blogging to the Bank". Clicking on the link on clickbank takes you to the domain bloggingtothebank.com Step 2: Google Filetype Search The next step is to simply query Google using the "filetype" modifier in your search string and searching with the domain name, example: Code: bloggingtothebank.com filetype:pdf Viola! You've instantly got all the PDF's associated with that domain With that query, Google suddenly gave me direct links to: Blogging Espionage Blogging to the Bank 2.0 Black Hat Blogging Techniques Blogging to the Bank Update Report And that's just the first 4 results returned by Google. Now it might not get you the exact file you are looking for (i.e. the original Blogging to the Bank PDF file isn't showing up, but version 2.0 is, etc). The beauty of this method is that not only does it get you what you're looking for, but it also returns a lot of things that are related. With the same search above, starting on page 2 of the results there's a bunch of other PDF's that Google thinks I'll like, including: Blogging to the Bank 2010 Edition How to Make Quick Cash Even If You Are Dead Broke Myspace Money Machine Email Inferno Auto Blog System X Niche Annihilation Method Blogging to the Bank 2011 Edition -- I guess this was just released? It's on page 4 of the results Google Snatch 2: The FREE Click Formula Google Massacre Secret Google Tactics: Dominate Adsense & Adwords With These Secret Tactics So 1 minute of searching revealed 3 full versions of the PDF I wanted, plus 10 other PDF's. Are they crap PDFs? Possibly, but you can always package them together and sell them to somebody for a huge price tag Step 3: Taking It A Step Further You can also just use keyword searches with the filetype search modifier: Code: blogging filetype:pdf This kind of search gets you a ton of interesting PDF's, but I find it results in a lot of academic papers and research projects. Some of them might be useful, but you seem to get better results if you stick to a specific PDF name. I.e.: Code: blogging to the bank filetype:pdf This search returns more PDF's of what we are interested in than the previous example. So it takes some playing with, but if you spend 15-20 mins playing with the keywords and searching for products listed on clickbank, you can pretty much download any PDF that is sold through their network for free. Step 4: Finding Storage Folders When I started playing around with this, I discovered that a lot of people will upload an ebook they bought to their website. This makes it more available when Google finds it, but also presents another opportunity to get even more ebooks. The 3rd result appearing for me in Google is the Black Hat Blogging Techniques ebook, available at the following URL: Code: ipowa.com/tg/blackhat.pdf Figuring the /tg/ folder is a generic storage folder, I went right into that folder to take a quick look: Code: ipowa.com/tg/ Hey look, there's 3 ebooks there! I've now got these in addition to the others I've found: Social Bookmarking Secrets White Hat Blogging Techniques Note about storage folders: Some people are smart and put an index.html file into the folder to stop you from finding their files. They can also change the permissions on the folder so it throws an Internal Server Error when you try to access it. In either case, just move on (though if you want to really probe a site you could do something like this in Google: "domain in question filetypedf" and probably get all their PDF's in that folder).