A suggestion I would like to make is that the resource/ebooks/software threads are made private (not visible) to guests and people who are not logged in.
Due to some SEO limitation we can not do this now, but we are working to do this in future.
All guest can see forums but they can not see links. I think this is good way because we prevent from useless registration, we need users that wants be active here not only register and go away.