You have written a lot of great posts, but over time the old posts get pushed down the list and buried in the archives of your blog. These posts would be new to readers who recently discovered you, and even your long-time readers could benefit from seeing them again. They may have missed them when they were new and, even if they read them, they may not have acted on them and may not remember them. Linking from new posts to older ones can also have SEO benefits for your blog.
So how do you help readers and the search engines discover (or rediscover) those older gems? Here are a few ideas: