Yep! If you hover over Forums in the ribbon across the top of this page, and click Forum Tips, there are instructions for subscribing to new thread notifications at the end of the page:
If you'd like to be notified of any new forums posts, you'll need to subscribe to our notification e-mail list. This is an external list to help manage traffic on the Web server. It's an all-or-nothing list – you'll get an e-mail for every new post that shows up in the forums. To join, go to http://www.listbox.com/subscribe/. Enter your e-mail address and the list ID “porg-forums-notices” and click “Subscribe.” You can remove yourself at any time.