Think of Fresh Comments as KeepandShare's version of "You've got mail!"
Fresh comments lists the most recent notifications you have received of new comments from your friends.
You simply click on any notification to instantly see the new comment. You can then continue browsing using the browser's back button to return to the Dashboard and perhaps click on another Fresh link.
Every notification shows you:

Fresh Comments tell you whenever your friends have made new comments you might be interested in. Instead of you having to visit each of your friend's accounts and look at all their shared information and try to notice new comments, just use your Dashboard to see their recent comments, and click through to add your comments in response to theirs. It's a lot like instant messaging but with the big plus that the set of comments are all tied together to the original item (such as a photoblog), so comments are effortlessly organized into a conversation on that particular subject.
Click on the "All Fresh Comments " to see a full report of all notifications spanning back many months. On this report screen you can use the 'Delete Notifications' button to permanently delete any notifications that you have selected. You can also use the 'Mark all as viewed' button to unbold all notifications.