Here is where you can kill 2 birds with one stone. Help others and increase traffic to your blog. Try Yahoo Answers. Either look at the approprite category for your blog or type in keyword in the search box and look for people seeking answers. If you have a post address the question, put a link to that post. However, do not spam.
If you have been providing pertinent answers, and people find your blog relevant, they will tend to go back to your blog and you can get repeat visits and loyal readers. In this way you can build up a readership