If you want to grow your blog and increase the number of visitors day after day, then it's critical that you take time to promote it. With millions of blogs being tracked by blog search engines such as Technorati, publishing compelling content isn't enough to drive awareness and traffic for your blog. So, the biggest and toughest job is to start generating traffic. Where will traffic come from? How will the most internet audience find your content? The only answer to above question is promotion and marketing. The free blog promotion tips below will definitely help you get started.

Post Frequently

Posting frequently, daily or every other day can boost your search engine traffic. Each new post acts as a new entry point for search engines to find your blogs. Writing with search engine optimization in mind can also boost the potential each of your posts has to lead traffic to your blog.

Submit to directories

Submitting to directories is quite important. Directories are sites where sites are ordered by niche and when you submit your site, your site gets added under the relevant niche. People looking for sites on specific niches simply go directly to the niche category on the directory. The more directories your blog is listed in, the more number of times the Google but will find your site mentioned hence driving up SEO and page rankings and hence improving external traffic to your blog. Here is the list of some interesting blog directories for blog promotion.

Technorati, Blogcatalog,  Blogarama,  Biggerblogger,  Ping-o-matic,  WeBlogALot,  Bloghub,  Blogrankings,  TopBlog,  linkrefferal,  blogtoplist,  bloggapedia,  bloggernity
Comment on Other Blogs

An easy way to give your blog a promotional boost is by commenting on other blogs. Each time you comment, enter the same name and URL in the corresponding fields in the blog comment form. Doing so will help your search engine optimization efforts over time. When you leave relevant, interesting and useful comments on other blogs (particularly those that are related to your own blog's topic), people will notice and follow the link back to your blog to learn more about you and read more of what you have to say.

Participate in relevant Online Forums

Join forums related to your blog topic and become an active, contributing member. Include a link to your blog in your forum signature, so it's always available to other members. Usually, you join forums that are related to your niche of interest and the niche of your site. You can add your link in the signature and it will appear below every post you made. Hence, it not only helps you get page rank but also help you to increase your Search Engine Page Ranking.

Use Social Media

Leverage the promotional opportunities that the social web provides for blog promotion. Join social networking sites like Facebook and LinkedIn and include links to your blogs and recent posts in your profiles. Join social bookmarking sites like Digg, StumbleUpon and Delicious and submit great content (not just your own). These efforts will increase awareness of your blog and give it added exposure.

Link to Other Blogs in Your Own Posts

Try to include links to other blogs in your own blog posts. Refer to other blogs you enjoy reading or specific posts you found particularly interesting. When those other blogs have the trackback feature turned on in their blogging software programs, you'll automatically get a link back to your own blog in the comment section of those posts. At the very least, the other blogger will see the incoming links from your blog in their blog statistic reports, putting you and your blog on his or her radar, and that means more exposure for you.

Include Your Blog Link in Your Email Signature and on Business Cards

Basically, include your blog URL everywhere you can. Your email signature and business cards are two of the most obvious places to promote your blog with a link or printed URL, but don't be afraid to think out of the box. Promotion is key to success when it comes to blogging.

Hold a Blog Contest

Blog contests are a great way to attract new visitors to your blog. The most important thing to remember when using a blog contest as a promotional tool is to get the word out about the contest by announcing it on contest websites.

Join a Blog Carnival

Blog carnivals are an easy way to get links to your blog in front of a lot of people. The more closely related to your blog topic that the carnival is, the more traffic you'll get from it. It is an easy way for blog promotion.

Guest Blog

Offer your services as a guest blogger for other blogs in your niche, particularly ones that get more traffic than yours does. Guest blogging is a great way to get links to your blog and your own thoughts and writing in front of people who are likely to be interested in learning more about you and your blog.

Write Multiple Sites and Link Them Together

The more blogs or websites that you write, the more interlinking is possible. That interlinking can be used to promote your blog through different channels that might attract different audiences. Create an integrated blog marketing plan by aligning your promotion efforts across your various blogs and websites to reap the biggest rewards.
Create RSS Feed for your blog

There are many available RSS website were you can submit your feed Url. But I suggest choose Feed Burner.