
Yammer
» see yammer.com as it lived, on the wayback machine
~ the obit ~
yammer never reached me directly. it was the kind of product that lived inside companies bigger than the ones i worked at, where some hr or comms team had decided the company needed an internal social network and the only debate left was which vendor to standardize on. the answer was usually yammer once the company was already paying for microsoft office, which was most companies after 2012.
david sacks and adam pisoni built it inside geni, the family-tree startup sacks had co-founded with max levchin in 2007. they realized the internal communication tool they were assembling for geni had broader use as a standalone product. yammer launched at techcrunch50 on september 8, 2008 and won the conference prize that week. the freemium hook was simple: any employee could sign up with a corporate email address, and once a critical mass of coworkers had joined, the company would buy the paid admin tier to take control of the network. by 2011 yammer claimed about 4 million users across 200 thousand companies.
microsoft bought yammer in june 2012 for 1.2 billion dollars. the brand survived inside office 365 for another eleven years as the enterprise social option next to sharepoint and the early skype-for-business stack. once teams launched in 2017 and took over the messaging surface, yammer's reason for existing collapsed to the long-form internal posts feature, and even that started feeling redundant once teams added channels. in february 2023 microsoft renamed the product viva engage and finally retired the yammer brand.
~ the rap sheet ~
| Born | September 8, 2008 (TechCrunch50 launch) |
|---|---|
| Peak | ~4 million users by 2011, before Microsoft acquisition |
| Killed | February 2023 (Viva Engage rebrand) |
| Lifespan | ~15 years |
| Made by | David O. Sacks and Adam Pisoni, later Microsoft |
| Killed by | Microsoft Teams cannibalization, then the Viva brand consolidation |
~ what microsoft bought ~
the 1.2 billion dollar figure was the loudest part of the deal at the time. it was a steep number for a company that had not yet figured out how to monetize most of its users, and it landed in the same year facebook bought instagram for about a billion. for microsoft the math was about the salesforce threat. salesforce had launched chatter as a free internal social layer for crm customers, and microsoft did not want salesforce setting the office workflow ceiling. yammer was bought to keep that ceiling inside redmond.
~ the long fold ~
the brand survived but the product shrank. teams took over the chat surface and sharepoint kept the document surface. by 2020 the only people still posting on yammer were ceos doing quarterly all-hands threads and middle managers trying to start engagement on return-to-office policies. when microsoft renamed it viva engage in 2023, most of the original users had already forgotten they still had an account on it.
~ the inheritance ~
david sacks went on to become a venture investor and one of the louder voices in the all-in podcast. adam pisoni left microsoft in 2014 and worked on civic-tech projects. yammer's main inheritance is the freemium-enters-from-below sales pattern: ship a free tool that any individual employee can adopt, let it spread laterally inside a company until the admin tier becomes a defensive purchase. slack ran the same playbook five years later for the same reasons.
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