hello guys.. just want to share this resources, we all know that directory submission is basic thing to do to gain backlinks, so heres a 2000 list of free directory submission.

Popularize your website with your content, write something about your site and publish it to 1000 free list of Article Directory.

And lastly the 2008 Social WebMarketing downloadable PDF.
content on PDF are
1.100 list of high visited social networking, that range from pagerank 5 to 9.
2. 120 list of Social Bookmarking , with pagerank of 4 to 9.
3. 150 Social Video Sharing, with pagerank of 3 to 9.

Attach also is a basic complete website optimization guide and SEO

Hope this one helps..

Cool !!! Thats really superb specially the directory's list.

__________________
Amar
SEO Service California
SEO Service Washington