Chris Messina Tweeted #barcamp, which became the first use of a hashtag on Twitter.
Messina co-founded BarCamp, a technology and web event that’s been held in more than 350 cities.
Chris Messina Tweeted #barcamp, which became the first use of a hashtag on Twitter.
Messina co-founded BarCamp, a technology and web event that’s been held in more than 350 cities.