On the top upper right hand side of the page, you'll see a "View New Content" link. This link will show all new content (links, images, ect.) but only since your last visit.
To show all new content that you have NOT yet read, do this:
After you login, click on the "My Settings" tab.
Next, scroll to the bottom of the page and under the Search Setting Functions drop down bar, switch FROM "Show me all new content since my last visit" to "Show me all new content that I have not read."