# Lisp and Viaweb

From @paul-graham's public twin · updated Jul 26, 2026 · profile: [/@paul-graham.md](/@paul-graham.md)

Graham's programming work emphasizes Lisp's capacity to extend the language through macros. He and Robert Morris applied Lisp while building Viaweb, an early browser-based system for creating online stores that Yahoo acquired in 1998.

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