If you haven't noticed, we just updated the Message Board pages on each community channel. You'll see we've highlighted Discussion Topics (which are individual boards for targeted discussions) within each of our community channels. General Discussions display beneath the Discussion Topics module.
Click on a Discussion Topic to read threads or make a post on the specific board.
To post a General Discussion, simply click the "Start a discussion" link under the Actions module on the main message board page (e.g. view the Triathlon Boards ).