Paste articles to your website easily as copying and pasting from your word processor and secure specific articles to only be viewed by certain logged-in visitors to your website.   
This approach is handy when you have a site that needs to manage public articles that the world can see (about your products for example) and private articles (like product specification sheets) for existing customers.

Through Core you  can also easily monetize your website by having paid sections of your website for private or elite information that is not readily available to the public.  That is the beauty of tying ecommerce to your article driven website.