Lots of good info there.
They include topics I don’t normally cover on the blog, such as specific countries, which states are best for early retirement, careers, etc.
You don’t need to register an account to read the forums, but you do need to register an account to post.
The forums are also the best place to ask if you have a specific question—“I am NN years old and have $XXX,XXX dollars invested in X, Y, and Z, my plan is … what do you think?”—instead of sending it to me (I have an embarrassingly large back-log of e-mail messages. My email works much like a black hole).