PLR or Private Lable Rights products are guides, content or articles (sometimes even software) that you buy and generally you can do literally anything you want with.

Once bought they can be edited. You can add your name as the author, or you can break them down into articles. They can be used as web or e-zine content or added into membership sites.

Private lable rights products can be sold in any format or packaged into larger more valuable products. You can even publish them offline.

PLR content normally comes with a very unrestrictive license which means you can also offer it as a bonus, give it away free and even try your hand at selling it on auction sites such as Ebay. You even get the rights to sell the (Master) Resell Rights or resell it on with Private Label Rights to your clients.

The word of warning here is that you should always check the license that comes with your plr and the general rule is that you will always make more money by altering or changing the content into something unnique.