Instagram and WhatsApp are just two of Facebook’s dozens of acquisitions. Google similarly acquired YouTube in 2006 and turned the video-uploading site into a media-consumption juggernaut, a replacement for cable television. Other social networks didn’t survive. Tumblr, for example, once on par with Twitter and Facebook, was bought by Yahoo in 2013 for $1.1 billion. Yet it suffered through years of mismanagement and declining growth, barely changing its initial product.
Case study on Tumblr
