In navigating the site, I've slowly become aware of the sidebar boxes and their content.
It was only today that I realized that those boxes contain content that is only relevant in the context of the current area (e.g. discussions, ides, blogs, etc.). For example, in the image below the New Solutions and Top Starred Posts only reflect the content in the Closed Beta Feedback.
Suggestion: I think it would be helpful to signify to the user either by color or by text that the sidebox content is area specific. This would also serve to orient the user as to their current top level content area (discussion, ideas, blogs, etc).
As is, the only way I know 'where I am' is to look at the top in the COMMUNITY > AREA 51 - TEST & FEEDBACK > CLOSED BETA FEEDBACK text line.
I bookmarked a Discussion posting but the only way I could see how to find it afterward was to go into my settings or my subscriptions. It would make sense for bookmarks to be a separate section on the main community page, along with Discussion, Ideas, KnowledgeBase, Blogs, etc.