Storyteller's Circle supports watching threads and forums which will send you an automated alert when people post into watched forums, or reply to watched threads. Optional e-mail notifications can be enabled as well.

These settings can be easily toggled on and off from your preference settings:

Be mindful that these automated options will only apply to newly watched threads. Any threads you had watched prior to altering these settings, will retain their old settings. To change the watch/e-mail status of previously watched threads you need to access your watched threads/forums pages:

From there you can edit existing watched content. If you wish to un-watch specific threads, make sure to use the circled 'with selected' option. The upper 'Managed Watched Threads' option will remove or disable notifications for all watched threads:

To manually watch a thread of forum, you simply need to click the watch button while viewing the thread or forum that you wish to watch: