SEMPO : Search Engine Marketing Professional Organization (SEMPO) is a global non-profit organization serving the search engine marketing industry and marketing professionals engaged in it.

SEOmoz : SEOmoz, a Seattle-based SEO company, serves as a hub for search marketers worldwide, providing education, tools, resources and paid services.

Web Analytics Association : The Web Analytics Association (WAA) unites and fosters the interests of industry practitioners, vendors, consultants and educators who use, sell, install, implement, consult, teach or train in the field of web analytics