Best Blogs/Article/Directories/Bookmarking Sites for SEO

As any SEO consultant knows, social networking, blogging, publishing articles and ensuring placement of your sites in the best free and paid directories is crucial to the overall success of your search engine optimization efforts. And sorting through the thousands and thousands of blog/article/and directories sites out there can be quite a task.

I've done the research, figured out which sites give you the best result as far as traffic is concerned. Here is what I've found, in no particular order:

Articles:
EzineArticles.com
Newsvine.com
ArticleCity.com
ArticleDashboard.com
Buzzle.com
ArticlesFactory.com
ArticleBiz.com

Blogs:
Blogger.com
BlogCatalog.com
Technorati.com
Wordpress.com
LiveJournal.com
Xanga.com
TypePad.com

Press Release:
PRWeb.com
Express-Press-Release.com
24-7PressRelease.com
PRLeap.com
I-Newswire.com

Free Directories:
Dmoz.org
Jayde.com
ExactSeek.com
WebWorldIndex.com
Accona.com
HaaBaa.com
WowDirectory.com

Paid Directories:
dir.Yahoo.com
BOTW.org
Gimpsy.com
WowDirectory.com
ExactSeek.com
Stpt.com

Bookmarking Sites:
Digg.com
Reddit.com
StumbleUpon.com
Del.icio.us
Simpy.com
AboutUs.org

I "dugg" a site on Digg.com and within 2 hours I was listed in the top 30 for the keyword phrase I was targeting.. Just thought I would give you a little incentive..

Good luck!