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.
Respond with personalised comments rather than a generic Thank You. Fostering a conversation helps build the credibility of your blog!
Incorporate gadgets and widgets on your blogs so that people who drop by your blog can keep a tab on what you will be writing next.