One of the techniques that many businesses will use to market content is to "curate" it. This is when you provide your readers with an assortment of links to other sites or resources, typically with your own opinions or observations inserted. It's sometimes easier than writing entire articles on your own since you simply need to find and compile these links and add in some comments of your own. Since an article of curated content is not completely original, it's not a technique that should be used all the time, but one method that can be used daily is a daily newsletter with that day's top stories and articles. This is where Paper.li and other similar services come in.
The idea is that, each day, the website service will automatically put together a new newsletter for you that contains articles and media from around the web, and sends it out to your subscribers and designated social networks.