I have read lots of articles about earning from PLR, and I must say that they are TRUE. In fact, due to my curiosity I bought a PLR pack and did some changes. Guess what? I was able to sell it for $45. It may not be that much but the point is, You Can Make Money from PLR products.
Here are some of the best sources of PLR products.
Massive collection of Private Label Right & Master Resell Rights Products
This is where I bought my first PLR pack, and I swear they have the best collection of PLR products.
EasyPLR.com by Nicole Dean
I just recently bought a pack of PLR articles, and they are of high quality.
If you want to create an ebook or just have some articles ready for your website and blogs, getting a PLR pack for your niche is a practical solution. Just make sure to edit them so they will be unique.