Here's what I do.
I go to the bottom of the page and click on ARCHIVE. You'll find it almost at the end of this page.........on my computer, it's in a black strip near the CONTACT US section. This will bring up a mini list of forum sections. Let's say you want to see the pics. Click on PICTURES. This will bring up a list of all the posts to that section. After you've read a post, the color of the title changes. That way you know you have read that post.
I bookmarked the Pictures page on my computer and use it to quickly get to the page anytime I come on the internet.
Hope this helps.