In case you have just a few minutes to browse the site and want to see what's new, here is what you could do:
Once you log your user name / password, you'll see these 3 lines just below the picture on the top right corner:
view post since last visit : this link displays any new post/reply made since you last logged on. Once read, the link disappear from the list.
view your posts: this link displays all topics you post or replied to. It helps you to follow the conversation
view unaswered posts: this link display all topics that no one has answered to yet