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Chris Messina

Chris Messina

Inventor of the hashtag. Product therapist. Investor

chrismessina
Emeryville, California
Joined April 2026
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Summary

Chris Messina is widely recognized as the inventor of the hashtag, proposing its use in August 2007 to group related discussions on social media. This innovation fundamentally transformed online communication and information organization, enabling users to easily follow and participate in trending topics. amitpanchal+3
As a seasoned product leader and "Open Web Advocate," Chris Messina has a rich history in designing innovative products and experiences, particularly in social technologies. His career spans influential roles at companies like Google and Uber, where he contributed to significant projects like Google Developers and Google+ publisher offerings. He is also a general partner at Ride Home Fund, LLC, focusing on investment in the tech sector. clay+4
Beyond the hashtag, Messina has been a catalyst for various open-source and community-driven initiatives in the tech world. He co-organized the first BarCamp, popularizing the unconference model, and opened San Francisco's first dedicated coworking space. He also played a key role in the early success of Mozilla Firefox and remains an active advocate for open standards on the web, contributing to projects like OpenID and Activity Streams. weekday+3

Work

Education

Projects

Writing

The Road to Arc 2.0: Will the Chrome killer become the user agent of the LLM era?

October 10, 2024

Discusses the potential future of web browsers like Arc in the age of Large Language Models.

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Did Apple just declare war on OpenAI? Does the Internet Accounts prefpane predict ChatGPT’s fate?

June 18, 2024

Examines Apple's potential competitive moves against OpenAI and its implications for AI integration.

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The Hashtag Remains Undefeated: Why It Remains Vital in Social Media

April 27, 2024

A reflection on the enduring relevance and evolution of hashtags, 16 years after their invention.

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The problem with the problems with hashtags: 16 years after their invention, is it time for a change?

August 13, 2023

Explores criticisms and challenges related to hashtags, considering their continued utility and potential need for evolution.

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Hashtags in the Sky: So Bluesky wants to change how hashtags work

June 27, 2023

Discusses how new social platforms like Bluesky are approaching or re-envisioning the use of hashtags.

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Today is my first day at Uber

January 5, 2015

An announcement of his joining Uber and reflections on his professional journey.

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The Fall of Vidoop

June 5, 2009

A personal account of the circumstances surrounding his departure from Vidoop.

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