PLR articles and PLR ebooks have always been and remain by far the most popular private label rights formats (and the ones I'll focus on).
One reason for that is the relative ease with which they can be edited or modified – text is a very accessible medium. Another is the fact that textual content is a vital ingredient in almost every online business.
Another attractive feature of PLR articles is that they offer the flexibility to be employed in a wide variety of ways; chopped-up, re-arranged, re-used and recycled.
In particular, private label rights articles and ebooks address the needs of Internet marketers who:
a) Don't have enough time to write all the content they need, and
b) Don't have enough money to hire someone else to write all the content they need.
I like to think that when used properly, private label products nicely fill the gap between those two scenarios: you buy ghostwritten content at a fraction of the full cost because you share it with others, you then edit the content to personalize it and make it distinct from other versions, spending a fraction of the time it would require to create the content from scratch.
You spend less money than you would paying for your own ghostwriter.
You spend less time than you would writing all the content yourself.
Not a perfect solution, but a compromise that offers savings on your two most precious commodities: time and money.
Flipping PLR eBooks On The Cheap
Topical PLR ebooks that have become outdated can often be picked up relatively cheaply or even free. If your budget is tight, these are a great buy. All you need to do is spend some time updating them with the latest information and links, etc., and you have a new product.
Because the backbone is already there, the work involved usually isn't that great, but what you end up with is a total transformation from an outdated relic to a great new ebook you can sell.
Just off the top of my head, an example of one area where this strategy would work well is with PLR ebooks on blogging – blog technology is always moving on so fast that the technical descriptions, usage guides and images, etc., found in blogging books soon become outdated as the software changes, whilst the basics of blogging remain the same.