Instagram (2010)

INSTANCE card for Instagram, launched 2010-10-06 on iOS only by Kevin Systrom and Mike Krieger (co-founders) via Burbn Inc., rebranded to Instagram at launch. Instagram reached 1 million users in 2 months; acquired by Facebook (Meta) April 2012 for $1 billion (13 employees at acquisition); Android version launched April 2012; sponsored posts (paid advertising) introduced October 2013; algorithmic feed pivot March 2016 (abandoning reverse-chronological); Stories format launched August 2016 (direct Snapchat copy with disappearing-content mechanic); IGTV video launched 2018; Reels short-video format launched August 2020 (TikTok counter-pivot); ~2 billion monthly active users by 2024; Shop tab and in-app checkout launched 2020-2021 (social-commerce pipeline). Instagram is the PHOTO/VIDEO-FIRST + ALGORITHMIC-FEED + INFLUENCER-ECONOMY variant within the meta-social-media-platform-2004 class — distinct from Facebook (text-first social graph) by: (1) visual-substrate primacy (photo filters + aesthetic vernacular from launch); (2) younger demographic skew (13-29 age cohort dominant through 2020); (3) influencer-creator-economy industrialization (Adams-Bell influencer-labor; Abidin "microcelebrity" machinery); (4) social commerce pipeline (Shop tab → checkout without leaving app); (5) Stories + Reels format competition (copied Snapchat 2016, copied TikTok 2020 — feature-copying as survival strategy under late_modernity dm_current). Internal controversies: Facebook Files 2021 (leaked internal research on teen-girls mental-health harm; Instagram team knew and suppressed); Adam Mosseri CEO post-2018 after Kevin Systrom and Mike Krieger departed in September 2018 following reported autonomy conflicts with Zuckerberg post-acquisition. Motor = flywheel: visual content quality attracts creators → followers → advertiser spend → platform investment → creator tools → repeat. V2.5 GAP: EmergenceSubtype enum has only 2 values (crowdsourced, meritocratic_hierarchy); algorithmic-feed-driven viral content emergence does not map — recorded here as description. (C7) Commodity gap: monthly-active-users, ad-impressions-served, photos-uploaded, creator-payouts, shopping-transactions-routed are not in Smil enum → commodity: null + [STUB] on affected throughputs.