To gain additional free traffic to your blog visit a pinging service like Pingoat. These services will submit your blog to hundreds of feeds. If you are diligent at writing and pinging your blog will see traffic.
Blog on other sites. Search for blogs relevant to your topic. Submit comments to those blogs. Be sure your comments are valid not just junk to get your name on the blog. Nobody wants to read junk. The more valid your comments the more valid the traffic you will receive from your efforts.
Get your blog listed in blog directories. Start submitting to as many blog directories as you can find. Again a quick search at Google will get you a significant list of directories to work with. The more directories you are listed in the more traffic you will receive if you write quality information on your blog.