Not sure about google but Its definitely going to kill Forbes. I can now get all news from Facebook with simple search like 'what is happening in Paraguay?'. Or 'which news site should I not read since its filled with hyperbole s?'
In a word, "no." LinkedIn is professional, Facebook is personal. Two totally different aspects of my life that I treat separately. So LinkedIn isn't going anywhere. The power of Yelp is derived through crowdsourcing. I don't have nearly enough Facebook friends to capitalize on the long tail crowdsourcing requires. So Yelp isn't going anywhere. And google? As if - I don't have enough time and space to explain why that isn't going to happen!
From the article:
"So, to answer the question in the headline: No, Facebook won’t kill any of these companies, certainly not anytime soon."