Previously I would post about the maintenance exams. Since they have moved to Trailhead, I feel they are no longer needed.
If you find yourself still needing assistance feel free to shoot me a message and I will try to assist where possible. I keep up on my maintenance exams so I might be able to provide insight.
If there is anything you would like to see more posts of just let me know and I will do my best to publish more if those topics.