Biz Stone

Biz Stone is best known as a co-founder of Twitter, the real-time social platform that fundamentally transformed digital communication, media distribution, and advertising. As a key architect of Twitter's early identity and culture, Stone served as Creative Director and helped shape the product's voice, brand, and public persona during its most formative years. Twitter's emergence as a dominant social platform created an entirely new advertising channel — Promoted Tweets, Promoted Trends, and real-time audience targeting — that influenced how the broader AdTech industry thought about social advertising and brand engagement. Before Twitter, Stone worked at Google following its acquisition of Blogger, where he had previously been a key contributor. He also co-founded Jelly, a social search app, and Medium contributor Obvious Corp alongside Twitter co-founders Evan Williams and Jack Dorsey. His career has consistently centered on building platforms that connect people and enable new forms of communication, each of which has had downstream effects on how content is distributed and monetized. Beyond his platform-building work, Stone is a recognized thought leader on creativity, company culture, and the social responsibility of technology companies. He has spoken widely on the intersection of technology and humanity, and authored the memoir 'Things a Little Bird Told Me,' reflecting on the founding of Twitter and his philosophy of entrepreneurship. His influence on the AdTech ecosystem stems primarily from Twitter's role as a major advertising platform and the industry norms it helped establish around real-time, interest-based social advertising.

Last updated Sep 26, 2026 by ATDb automated enrichment