Internet Marketing Blog
 

http://www.im-blog.info/2007/05/13/list-of-blog-directories/

PR7
http://www.blogcatalog.com/
http://www.bloghub.com/
http://dir.blogflux.com/
http://www.blogarama.com/
http://technorati.com/blogs/
http://www.blogrankings.com/

PR6
http://www.topblogarea.com/
http://www.blogtoplist.com/
http://www.blog-directory.org/index.php
http://blogs.botw.org/
http://www.weblogalot.com/
http://www.britblog.com/
http://www.bloggeries.com/
http://www.bloggernity.com/
http://www.search4blogs.com/bloggers/index.php
http://blogsweet.com/
http://findingblog.com/
http://www.bloguniverse.com/

PR5
http://www.photoblogdirectory.net/
http://www.blogdirs.com/
http://www.blogdup.com/
http://www.bestblogs.org/
http://blogannounce.info/
http://www.blogdirectory.steamysexblogs.com/
http://dir.yahoo.com/Computers_and_Internet/Internet/World_Wide_Web/Weblogs/
http://www.addurlblog.com/
http://www.campaignline.com/blogs/
http://directory.etalkinghead.com/
http://emarketingblogs.com/listings/index.shtml