Stephan Spencer

Stephan Spencer is co-author of "The Art of SEO," the founder of Netconcepts, and the inventor GravityStream, an automated pay-for-performance natural search technology platform.

Stephan is a frequent conference speaker on SEO and other online marketing topics for the Direct Marketing Association, American Marketing Association, Shop.org, Internet Retailer, SMX, IncisiveMedia (Search Engine Strategies), O'Reilly/TechWeb, PubCon, ECMOD, IQPC, and IIR.

His hundreds of speaking gigs have taken him around the globe — from Berlin, London, Toronto, Santiago, and Auckland, to New York, Chicago, San Francisco, Los Angeles, and places in between.

He is host of two popular podcasts, "The Optimized Geek" and "Marketing Speak."