How many of you have used blog directories to promote your blog?

Are they worth spending time? I find it to be a labourious procees.

So, far I do not think it has generated traffic ,but it increases your blog popularity.
At least, that is what others told me, so I did some submissions.

Anyhow, I am sharing below a few blog directories.
For whatever worth, I will start collecting these.

Anyone care to share their experience, suggesstions and their list of blog directories?

The list:
www.lsblogs.com
www.BlogBits.com
www.bloghop.com
www.yourwebloghere.com
www.search4blogs.com
www.bulletize.com
www.blogwise.com
www.wilsdomain.com
http://www.big-blog-directory.mc2blog.com/directory/
www.blogcatalog.com/
http://www.bloggernow.com/
www.Bloggerswap.com - Swap blog link with other bloggers - Free!
http://www.blogarama.com/
http://www.blogstreet.com/
http://portal.eatonweb.com/
http://www.globeofblogs.com/
http://www.blogrankings.com/
http://www.weblogalot.com/
http://www.blogexplosion.com/
http://www.bloggeries.com/
http://www.bloglisting.net/
http://bloghints.com