Blogs » Official Blog » Company News » StumbleUpon By the Numbers

It’s been a little over a year since we struck out on our own and became an independent start-up again. Since then, we’ve released the web bar as well as a new version of the flagship Mozilla add-on, our content syndication service, a Chrome extension that’s one of the top 20 third-party extensions out there, a revamped ads system and new look to our site, an iPad app, new badges, and much more. We’ve also had the chance to exhibit amazing art at our office, party with you at SXSW 2010 and talk shop at HBase meetups.

As often happens with birthdays and anniversaries, we’ve been thinking a lot about where we’ve been and where we’re going, and we’d like to share some current figures and growth rates since April 2009:

118% – the growth in active users since 2009.

#1 – StumbleUpon’s rank among social media traffic sources in the US.

5.4 billion – recommendations we’ve delivered since April 2009. In March 2010 alone, we delivered over half a billion recommendations.

25– typical number of times a Stumbler stumbles per day.

400– average number of times a Mozilla add-on user stumbles per month.

Over 100,000– number of StumbleUpon fans on Facebook.

9,908,350 – the most recent tally of total registered users, a 30% growth rate since March 2009. We’re psyched about hitting that 10 million mark, especially since more people discovering and recommending great online content means an even better user experience!

/StumbleUpon Team profile picture