SXSW

Twitter 2007-03 entertainment evergreen Updated 2026-02-10
Late 2000s Major 100M+ lifetime posts

First documented in March 2007 on Twitter. Evergreen hashtag with sustained activity since 2007, returning to use in cycles rather than spiking and fading.

Also known as: SouthBySouthwest

#SXSW

Annual Austin festival where Twitter exploded into mainstream consciousness in 2007.

Quick Facts

AttributeValue
First AppearedMarch 2007
Origin PlatformTwitter
Categoryentertainment
Statusevergreen
Est. Lifetime Posts100M+

Origin & Impact

South by Southwest 2007 was Twitter’s breakout moment. The conference placed Twitter screens in hallways, and usage tripled from 20,000 to 60,000 tweets per day. #SXSW became the rallying cry for tech early adopters discovering real-time social media.

The festival continues annually, and #SXSW remains one of the most-used event hashtags, marking product launches, networking, and cultural moments at the intersection of tech, film, and music.

SXSW demonstrated how hashtags could amplify physical events and create parallel digital experiences, establishing a pattern that would dominate conference culture.

  • #SXSWi, #Austin, #TechConference

References

Explore #SXSW

Related Hashtags

2007 2022 #SXSW 2007 #Tech 2008 #12YearsASlave 2013 #13ReasonsWhy 2015 #1917Movie 2019 #1917 2019 #1899Netflix 2022
Related hashtags by year of first appearance — circle size reflects lifetime volume, fade reflects how active each tag still is.