Famous SEOs Listed on Wikipedia.

Danny Sullivan
Bruce Clay
Jill Whalen
Brett Tabke

Danny Sullivan (born in 1965 and raised in Newport Beach, California)is the editor-in-chief of Search Engine Land, a blog that covers news and information about search engines, and search marketing. Search Engine Land is owned by Third Door Media, which Danny Sullivan is partner and chief content officer of. Third Door Media also owns and operates other search related companies, including Search Marketing Now, which provides webcasts and webinars, both live and on demand, about web marketing; and Search Marketing Expo, a search engine marketing confrence.He also stages the Search Engine Strategies conference six times each year, attracting 1,500 to 6,000 attendees each time.

Bruce Clay is a professional search engine optimization consultant.Clay is the CEO of the search engine marketing firm Bruce Clay, Inc. which he founded in 1996. Bruce Clay, Inc. offers SEO, PPC, web analytics, web design, email and branding services to companies that want to improve the ranking of their websites in the organic search engine result pages (SERPS)He and his company are active with industry organizations such as: SEMPO, the Search Engine Strategies conference, IMC USA, Web Analytics Association, American Marketing Association, IIMA – International Internet Marketing Association and the California Chamber of Commerce.

Jill Whalen is owner of High Rankings, Search Creative, LLC and co-founder of SEMNE. She is an authoritative writer and speaker on the subject of search engine optimization, a regular speaker at Search Engine Strategies Conferences put on by Danny Sullivan, and for the past few years has been holding High Rankings Search Engine Marketing Seminars. High Rankings includes a top rated SEO discussion forum with many industry experts.
Whalen has been quoted as an authority by major publications including the Wall Street Journal, Business 2.0, and The Washington Post, and has been featured in Marketing News Magazine which is the trade publication of the American Marketing Association. She is a frequent guest expert for search engine optimization articles that have been featured on business websites.

Brett Tabke is an American programmer and SEO professional. He is the founder of WebmasterWorld, an online search engine and internet marketing forum.
Tabke started working with computers at a young age, developing software for Commodore home computers. He then worked for companies like Epyx and Berkeley Softworks (later renamed to GeoWorks, and makers of the GEOS operating system). In 1984 Tabke started his first BBS using a 300 baud modem on a dialup line. In 1996 he made the transition to internet and web technologies.