Given that your blog has great content, it should also be presented in an organized way. Link within, smart layer are some must have widgets for the same.
Post Ideas: At times you will just run out of ideas for post not sure what to do. use google and apps like Evernote to note down all that ticks in your mind. Something will surely turn into a new post.
Create infographics for your blog to summarise the content and present it in a more interesting way.