A blog is a great platform to give your opinion and discuss your life with others. If you are a great blogger and you are writing posts about everything but nobody is visiting your blog then it is worthless. So you have to market your blog.There is lots of way to market your blog. I have found a great link for marketing your blog.here is the link:
http://www.problogger.net/archives/2007/01/11/how-to-market-your-blog-in-2007/