I've done a lot of research on ways to get free content and the truth is that it's out there just waiting for you to seize it. In this article, I'll cover the main ways I personally get my hands on free content that can be used on any platform.
First, I'm going to be talking about Creative Commons knowledge. A lot of sites on the net operate under a "Some rights reserved" Creative Commons license. What does this mean? Well, basically, it simply means that you can take the content, build upon it, re-use it, use it for commercial purposes, etc... There are a few catches to using this technique but nothing too big. For instance, if you choose to edit and build upon this free content, you have to then license your new work under a Creative Commons Some Rights Reserved License(the same license the original content was under). The best place(the only place) I have found so far to find free content under this license is:
The second kind of free content I'd like to mention is works in the Public Domain. You'd have to do a little research before you jump in on this technique though because you have to be 100% certain the content IS actually in the public domain. Real public domain works are free to use by anyone for any purpose. They're not protected by any kind of copyright agreement.
The third type of free content I'd like to talk about is free PLR content. There are a lot of sites on the net that will provide you with all the free PLR you could ever want... the only catch with this technique is that you're going to have to re=work the text and build on it if you want your new page to rank well with the search engines. Why? Because this content is so freely available to everyone, a lot of people are already posting this stuff "as is" on their websites and this means that if you do the same thing, you'll get hit with the duplicate content penalty by Google and you'll probably get sent to the proverbial google sandbox.
These are just a couple of ideas I have personally come up with for finding free content on the net. If you just put your thinking cap on though, I'm certain you can dream up dozens of other ways of getting your hands on some free content. Or, just start with one of the techniques I discussed above.
As always, comments are welcomed and encouraged here. Cheers!