Hey Jay,
Sorry for the delay. I just got back onto the pages you linked to, and of the 5 links, 4 actually do bring you to content pages. The Feed module is mostly automated on Facebook's end to pull recent (or most active) links from the domain you specify in the module. If someone happens to share those incorrectly, unfortunately, they'll be pulled into that module using the incorrect link, which is what I think has happened for one or two of your links. By placing Like buttons on the pages, that can generally help clear that problem up, simply because there there's no issue of cut & paste, and also because it's a direct link between your site and Facebook, which allows Facebook to call back to it and get a little more info about the page.
One thing I would recommend trying is updating the domain parameter in the JFBCFeed module to just your domain name (
dynamicearth.net/), without the /facebook at the end. I don't think this will magically make things work better though.
For more information about the Activity Stream (JFBCFeed module), you can read the synopsis at this page:
developers.facebook.com/docs/reference/plugins/activity/
Hope this helps, but if you have any other questions, just let us know!