I'm more than happy to accept submissions for guest posts. However, I'm most likely to publish posts by other teen writers, and writers of YA fiction, especially those who write fantasy or dystopian stories. Your post can either be a book review/spotlight or a post that is writing related in some way (and the fact that you wrote the post does not make it writing related!).
If you want to submit your post, email me at andywalserauthor(at)gmail(dot)com with a short (between 400 and 500 word) pitch of your post. Please include your name, or pen name, an author bio, and a picture if you want me to add one. If possible, please include a link to your blog/website/etc. if possible.