Earlier quoted context omitted.
> Yahoo failed because they were out-innovated The worst part is that Yahoo innovated a lot ... In incubators, side projects, etc ... But they failed to bring their innovations to their main products, or to turn their side things into full blown products. They had no plan, neither overall or per product. Take emails for exemple, for the longest time (and still now, although not as dominating) THE key to user identity…
> The best non-yahoo similarity I can find is what Google is doing with Blogger. That's a good point. But to be fair everything "social" that Google has touched has died with the exception of YouTube. In fact Google really hasn't done a great job holding onto many other arenas than their main ones. Blogger has been blasted by Medium. Knol was outlasted by Quora. Google Code was beat by Github. Their "shopping" attemp…
Knol wasn't a competitor to Quora. It was meant to go after Wikipedia, Answers.com, and the various how to sites. Quora wasn't founded until June 2009. Knol's traffic had peaked in early 2009 and already fallen off a cliff by June 2009. By the time Quora got up to scale, knol had been long dead. By Google's own admission, they were shocked by the success of Wikipedia, which spurred their attempt with knol.
https://techcrunch.com/2008/07/23/googles-knol-the-monetizab...
https://techcrunch.com/2009/08/11/poor-google-knol-has-gone-...