1. Write and submit articles to article directories - Your blog url will be in the resource box at the bottom of the article.
2. Participate on forums in your niche and put your blog url in your sig. file.
3. Comment on other blogs in your niche/related niches.
4. Submit your blog to blog directories.
5. Ping your blog at ping-o-matic and other ping services
6. Submit your blog to social bookmarking services such as digg.
7. Submit an online press release.
8. Tell your friends, family, anyone you know about your blog.
9. Put your blog url on your business cards.
10. Create an RSS feed and submit to RSS Directories.