Reality check time: Instagram A-OK with 90M monthly active users | Internet & Media - CNET News

Also interesting to consider that Instagram is built on Postgres rather than "NoSQL"

"The photo-sharing app has 90 million monthly active users, according to its just-updated press page, as first spotted by All Things D. This is the first time the Facebook-owned property has reported active users. Previously, Instagram said that it had 100 million registered users.
The number confirms what CNET has suspected for weeks: Instagram has fully recovered from its December privacy scandal.
[...]
Instagram's refreshed press center now includes a few other interesting tidbits: Instagram sees 40 million photos per day, 8,500 likes per second, and 1,000 comments per second. Separately, technical co-founder Mike Krieger revealed in a developer blog post that Instagram handles more than 10,000 likes per second at peak times."

Reality check time: Instagram A-OK with 90M monthly active users | Internet & Media - CNET News