quality, not quantity that matters. update blog with interesting, quality content, but just by writing good content you cannot drive traffic, though quality of the content matters, it's marketing that makes the difference. spread the word in every possible way, come on. you have a lot of options in the Internet. Social Media is one of the best platform to promote your blog, write article for other sites also, in this way you can get back links, and also can drive traffic. Syndication, there are a lot of sites in the web for syndication, post the summary of every blog you write and drop links along with summary. There are many other ways to promote blog, like social bookmarking, squidoo lens, forums etc..