The simplest and most effective way to promote your blog is by visiting other blogs that are similar to yours and contributing to them.
This is a fundamental website promotion tactic.
Try not to make it harder than it is.
If you have a blog where you talk about physical fitness, would it not make sense to get to know some other people online who also blog about physical fitness? Do you agree that their blog readers be more likely to want to read what you have written also? Imagine one of their blog readers coming across a thoughtful intelligent comment that you left on that other similar blog.
They are way more likely to click on your name and follow that link back to your own blog to see what else you have to say.
What if the market for your blog is so small that you cannot find other similar blogs? Some people want to write about things that very few other people are likely to find interesting.
If this is the case with your blog then you are going to have to use a different approach to promote your blog effectively.
You might be the only person you have ever come across that really talks about this particular topic.
In that case the best thing you can do is to focus on SEO or search engine optimization.
You want to figure out specific phrases that people would type into a search engine in order to find a website like yours.
Then you need to make every effort to get your website to rank high in the search engines for those particular phrases.
Once you accomplish that you will slowly begin seeing the targeted traffic you are looking for.
In order to do this I suggest you use two primary tactics.
The first tactic is to befriend some other bloggers that have pretty prominent blogs.
You want to find someone that you are highly compatible with personality wise that also has a blog with high Google Page Rank (PR).
Once you get to know this person well enough, you could ask them if they would please help you out by allowing you to write a one page guest post that promotes your blog.
If they agree to it, then you will be able to use the power and influence of their website to tell Google that your website is about this other topic.
That is going to help you rank higher.
The second method you can use to promote your own blog without having to get to know other bloggers is if you launch your own article marketing campaign.
You can use websites like EzineArticles.
com to write articles about the same topic as your blog.
Then put links back to your blog in the footer.
As people come across your article on the article sites, you will direct some of them to your blog to read more.
It takes time to build your presence this way, but it will work if you are persistent.