09 headquarters san francisco ca us founder s david o. sacks adam pisoni 1 parent microsoft website yammer.com type of site enterprise collaboration yammer is a freemium enterprise social networking service used for private communication within organizations . access to a yammer network is determined by a user s internet domain so that only individuals with approved email addresses may join their respective networks . 2 the service began as an internal communication system for the genealogy website geni.com 3 and was launched as an independent product in 2008 . 4 microsoft later acquired yammer in 2012 for us 1.2 billion . 5 contents 1 history 2 see also 3 references 4 external links history edit david sacks one of the co founders of yammer adam pisoni one of the co founders of yammer in 2013 . on september 8 2008 yammer was launched at the techcrunch50 conference after co founder david sacks 4 a former paypal executive developed the basic concept of yammer while working on a startup project after he left paypal in 2002 . 3 in addition to its communication function yammer also gives third party developers the opportunity to create and sell their collaborative applications directly to users of the platform . 6 by april 2010 yammer ceo sacks claimed that yammer revenue was doubling every quarter but would not disclose revenue figures for 2009 beyond describing it as seven figures . sacks also stated that 70 percent of fortune 500 companies were using yammer at that time . 7 in september 2010 the service was being used by more than three million users and 80 000 companies worldwide including 80 percent of the fortune 500 . 6 during this period yammer 2.0 was launched and the new version was described as a facebook for the enterprise . 8 as of june 12 2012 yammer has received around us 142 million in funding from venture capital firms such as charles river ventures founders fund emergence capital partners goldcrest investments and ron conway an angel investor 9 while the total number of subscribers is close to 8 million . 10 on june 25 2012 microsoft acquired yammer for us 1.2 billion in cash . 11 12 following the acquisition microsoft announced that the yammer team would be incorporated into the microsoft office division but would continue to report to sacks . 13 on july 24 2014 microsoft announced that yammer development was being moved into the office 365 development team and sacks announced that he was leaving microsoft and yammer . 14 see also edit list of social networking websites references edit yammer executives . yammer.com . retrieved june 29 2012 . brad chacos 7 august 2012 . what the heck is yammer . pc world . idg consumer & smb . retrieved 25 june 2013 . a b liz welch november 2011 . the way i work david sacks yammer . inc.com . mansueto ventures llc . retrieved 25 june 2013 . a b schonfeld erick 2008 09 08 . yammer launches at tc50 twitter for companies . techcrunch . palo alto california . michael lietdke 25 june 2012 . microsoft buys yammer for 1.2 billion . the huffington post . retrieved 25 june 2013 . a b leena rao september 28 2010 . yammer debuts a facebook for the enterprise . techcrunch . palo alto california . retrieved october 15 2010 . arrington michael 2010 04 26 . yammer doubling revenue every quarter no fear of salesforce . techcrunch . palo alto california . retrieved 2011 01 21 . chelsi nakano september 30 2010 . enterprise 2.0 roll up yammer turns facebook mobile outshines social media tools . cms wire . simpler media group inc. retrieved october 15 2010 . yammer . crunchbase . crunchbase . 12 june 2013 . retrieved 25 june 2013 . lunden ingrid . a year after microsoft bought it yammer nears 8m users deeper msft integration and klout . techcrunch . israel shel june 25 2012 . it s official microsoft buys yammer for 1.4 billion cash . forbes . retrieved june 29 2012 . yammer microsoft s billion dollar social bid csmonitor.com . retrieved 10 july 2012 . colleen taylor ; ingrid lundgren 25 june 2012 . with 1.2 billion yammer buy microsoft s social enterprise strategy takes shape . techcrunch . aol tech . retrieved 25 june 2013 . mary jo foley 2014 07 24 . microsoft moves yammer under office 365 ; co founder david sacks is out . zdnet . retrieved 2014 07 25 . external links edit wikimedia commons has media related to yammer . official website v t e social networking services websites personal 23snaps anobii asianave askfm badoo bebo cymbal cyworld diaspora draugiem.lv ello facebook foursquare google hello hi5 highlight instagram keek lockerdome meetme mewe mixbit mixi mobli musical.ly myspace odnoklassniki nasza klasa.pl nextdoor path peach pinterest pixnet pheed renren sina weibo slidely snapchat so.cl spaces sportlobster spring.me streetlife studivz swarm tagged taringa tea party community tout ts tuenti tvshow time tumblr twitter untappd vk vine whisper xanga yo qzone professional academia.edu brainly branchout edmodo exo platform ibm connections linkedin researchgate sciencescape solaborate viadeo xing ideaplane yammer defunct capazoo emojli formspring friendfeed friends reunited friendster grono.net hyves itunes ping iwiw jaiku me2day netlog orkut sixdegrees.com tvtag wretch white label services ning wall.fm tools opensocial social network analysis software diaspora software web 2.0 suicide machine general comparison of software online identity user profile virtual community 1 million users 100 million users applications social network advertising social network hosting service online dating service comparison mobile user interface activity stream brand page like button hashtag groups reblogging polling internet petitions implications privacy issues user gender difference use in investigations related concepts small world experiment small world network social network cybersectarianism panopticon protocols distributed social networking protocol retrieved from https en.wikipedia.org w index.php title yammer & oldid 730882302 categories 2008 introductionscompanies based in redmond washingtonsocial networking servicesblog hosting servicesinternet properties established in 2008microsoft acquisitionsmicrosoft officehidden categories commons category with local link same as on wikidata navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version in other projects wikimedia commons languages boarischdeutsch fran ais bahasa indonesianederlands polski srpski edit links this page was last modified on 21 july 2016 at 15 31 . text is available under the creative commons attribution sharealike license ; 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