Master Resale Rights or Master Resell Rights give you the opportunity to sell to your customers both the product and the resell rights to that product. In other words, if you buy a product with Master Resale Rights, you can resell it and (if you want) you can pass along the resale rights to your customers too. This increases value of the product significantly, because your customer may resell the product for profit as you did.
What Are "Private Label Rights"?
PLR or Private Label Rights allow you to edit or customize a product and even put your name as the author before reselling. You can change the content in many ways, such as writing an additional introductory paragraph, editing the title, changing the cover or completely modifying the product. Private Label Rights vary, with licenses offering full authorship while others limit distribution, and restrict what can be done with the content. In general, any digital product that allows you to change the content and claim its authorship can be called a Private Label Rights product.
What are "Resell Rights"?
Resell Rights work the same as Master Resale Rights, with the exception that you may sell the product and keep 100% of the profits, but you may not sell (pass along) the resell rights to your customers, meaning that they are not allowed to resell it at all!
What Are PLR Articles?
Well, by now you can guess what a PLR article is. Simply put, PLR articles are articles that come with private label rights. These highly versatile articles are inexpensive source of content and can be modified or used in any way you want.