List of Popular Directories where you can submit your blog or site

1. http://technorati.com/
2. http://topblogarea.com/
3. http://topblogging.com/
4. http://blogtoplist.com/
5. http://fuelmyblog.com/
6. http://mybloggingarea.com/
7. http://www.blogcatalog.com/
8. http://www.bloggingfusion.com/
9. http://www.blogarama.com/
10. http://topbloglists.com/
11. http://blogroll.net/

This list was made by bloggertricks.com. If you want to increase your traffic, you may want to submit your blog/site to these directories. I found them very helpful myself.