You need to redesign it.
When you first look at a blog often unless something REALLY grabs your attention you will quickly move on and may never revisit again. A blog with a custom design that is pleasing to the eye could increase your repeat visits by 10 to 50% IMO. Over a year that could lead to massive exponential growth.
In this post I will be talking about wordpress hosted on your own server and not a free one like the one here. So if your using something else just ignore the technical details.
In wordpress if you are using the default theme all you have to do is in the header.php file remove the div id tag labeled header until the next division tag. This will keep the generic default top from showing. And instead put in html code for a 728 X 100 image designed in microsoft paint or adobe photoshop.
The next thing you may want to do is change the style.css file and modify the colors of the links/text to match the custom image or theme of your blog.
Other additons ive done to my blog are modify the loop in index.php to call a PPC banner(such as google adsense or adbrite) 3 times overall in an alteranating fashion. For example after the 2nd blog post after the 5th and after the 8th blog posts. That way people might be tempted to click on the ad between the blogposts they are reading.
There is many other things you could do also such as have a technorati search built in at the end of every blog posts(with a target tag so it opens a new window) so people could search other bloggers for more info.
These kinds of things will get repeat visitors and for other bloggers to take notice and link to you!
