Hello, so my first site suggestion I thought of when following a topic of my own, and I've noticed when following a topic you get emails when people reply. I've no idea if there's an option to get a notification instead of an email, so if there is I apologise.
My suggestion would be something similar to this, however the site it is taken from is copyrighted, so an exact copy would be out of the question.
It works basically as a list of topics you are tracking, the topics are listed and you can click them and it will take you to said topic.
I know there is an existing topic tracking system but I and I'm sure other users are after ease of access and how easy it is to use. I welcome any feedback positive or negative.