I love the idea of having guest bloggers and I'm open to any ideas that you may have. I allow for you to include two links to external articles (which can include your own blog) as well as a biography that includes your social network accounts and blog. I definitely don't charge any fees for guest blogging.
Sponsored posts written by someone else (or you) are not guest posts. A sponsored post means you are discussion your organization, product, or book with only the intention of garnering sales. If a "guest post" only contains content related to your organization, product, or book without any true message to my readers than it's considered a sponsored post. Please read my policy on sponsored posts.
Of course, I don't want to come across like a total un-fun stickler, so if you have any concerns about what category your post falls under, please contact me. Again, I love guest writers, so please contact me if you would love to write for my blog.
Email me @ npyles86[at]gmail[dot]com with any questions or concerns.