Getting the content you need for your publication is easier than you might think. In lieu of creating editorial from scratch, there are a number resources on the web that allow you to get quality content to use in your publication.
Here are a couple services that allow you to search and republish pre-written articles:
Here are sites that allow you to cost effectively hire writers to create custom content for you:
There are many others that can be easily found with a quick google search on keywords like: article marketing, content marketing services and writing services.