Here’s a terrifically confusing navigational element that seems to be the default on many blogging systems. You get to the bottom of the page and you have the option to browse to the Previous or Next pages. But does Next mean the next entries that were added (ie, newer posts) or does it mean the next page that you haven’t read (which would mean older posts).
When you’re publishing by date, there are two states: older and newer. Any other label for date based organization and you’re left considering: does this label mean older or newer.
And any time you have to consider what the next action means, there’s a problem with the user interface. So, change your blog navigation buttons to Newer and Older and save everyone the trouble.