You need to make a better use of the white space on your website.
More content is needed if you want to get users visiting your website more often.
You might want to choose a different layout, for your web site/blog I would recommend looking for opensource web templates, you can find really professional designed web templates that describes what your intentions are.
You should also include a about us page, that tells users what you are trying to do.
If you know how to program in PHP, you should design a contact form to make it easy for the users to contact you. If don't know how to, you can download a contact form written in PHP and then you could alter it to suit your likes.