SearchinQ

http://www.blazingwebhosting.com/directory/
A human edited Online web resource directory for SEO and webmaster resources of quality family friendly and spam free sites organized with a comprehensive category structure.

http://www.cmseo.com/resources/seo-directory.htm
A directory of resources for finding information about search engine optimization and related technologies.

http://www.seoconsultants.com/
Find search engine marketing (SEM) and search engine optimization (SEO) companies. Locate professional search engine marketing consultants from around the world who have proven track records with search engines, directories and pay per click (PPC) bid management programs.