If you have been or are looking to earn a living online and have considered using Resale Rights products, you may well have found all the launches of products and offers a little confusing. So lets see if I can help!
Firstly, resale rights are generally split into three areas:
1.Master Resale Rights- These provide you with the entitlement to sell the product with the Master Resale Rights to the buyer.
2.Resale Rights- you are allowed to sell the product only to the end user.
3.PLR or Private Label Rights- Most of the time you will receive the source files to these products and you are allowed to do pretty much anything you would like, including claiming to be author of the product.
Generally speaking you will receive graphics, sales pages and on occasions also sale and promotional material. On paper you can market the product as is. However, do this with some caution, products that provide Master Resale Rights may already have saturated the market by the time an offer reaches you, so do some research. If a number of marketers are selling as is, how much competition for this product exists? Is there a demand for the product area?  
Resale Rights with whichever rights they convey can be either in the form of ebooks, audio books and courses, video and software.
So what could you do? Well dependant upon the rights conveyed to the product you have purchased you may consider the following:
* In the first instance you could alter the sales graphics, and the ebook covers.
* Moving onto the product itself you may wish to reword the introduction, reorganise the index page and possibly put your own wording and influence in some areas of the book.  In other words try and make it your own, can you improve it!
* You could split a book into special reports or smaller books, possibly offer this as a course to subscribers to a list.
* Consider grouping together products in the same niche for example a book and a video or audio file and put together a multimedia product or course. 
* Make a physical product out of a software product or print an ebook.
This increases the products perceived value, so suddenly an ebook put to print and a software product put to CD you have your physical product and possibly the beginning of a course!
So in summary most buyers of Resale Rights will either do nothing with them or try selling them as is, be daring and creative, put your own personality and slant on things and you will have your own products to market.  I hope that this provides an initial outline towards your marketing success