If you are the sole contributor to a personal or corporate blog and have been the main source of content for quite some time, you can understand the pressure of trying to provide unique content day in and day out.  There will be times where you simply lack inspiration and will look for help to bare the load.  Finding consistent contributors (guest authors) is not the simplest thing to do since everyone has their own priorities and writing articles can be quite time consuming.  Below I have outlined some ways to help you beef up your blogging team:

• Twitter: After having blogging for some time, you begin to gain more readers and followers who engage with your blog on a consistent basis.  Creating your own Twitter account and growing your followers will prove to be useful because you will be able to update your followers very quickly and you will be able to reach out to them for future writing opportunities.
• Facebook Groups: Facebook simply doesn't manage all your friends anymore it has expanded to include business contacts as well.  Many notorious bloggers have created Facebook Groups around the topic of their blog to communicate with their readers on a different level.  With the ability to message all your members at once, Facebook Groups can prove to be quite useful in finding new writing talent.
• Benefits of Writing for You:  Why should anyone write for you? What are the benefits of me adding content to your blog rather than posting it on my own?  Everyone wants benefits, so if you're looking for writers make sure you clearly mention things like: your blog's monthly traffic, number of subscribers, where your blog is syndicated, the type of people who read your blog and any other way which will improve someone's thought leadership while blogging for you.
• Contests: This might only lead to short term writing engagements but having a contest where bloggers compete for traffic on a given topic for the chance to win a cool prize is a great way to add fresh content to your blog.  Bloggers love free stuff like books, conference passes, access to tools, and gadgets.
• Show me the Money: If you have an authoritative enough blog that makes a decent amount of monthly income, you can look into paying authors a set premium based on CPM.  This will really entice your authors to produce large amounts of quality content.