Click on the "View Active Topics" link and it will cull the recent posts from all the forums you might be overlooking.
But to answer the original question, I also visit Rotojunkie's forums, http://forum.rotojunkiefix.com/forum.php
, which are excellent but they had to unexpectedly move last year and are still in a bit of a rebuilding phase.
Also Rotoworld's, though theirs can be a little more tedious. Sometimes too much activity isn't a good thing either.