Google is late in providing its enhanced layout and more sophisticated tools. Much of what the company announced is already standard design for Bing, and is common in many professional search based applications.
Trolling is a growing problem online and especially in social media spaces. It clogs up our email boxes, confuses the follower/following counts and throws monkey wrenches into people actively building engaged online communities. I have created my own types based on behavior I have seen.
From a financial perspective, Google is still a one-product company (search). But now, in the biggest and most important market on earth (responsible for almost half of Google's revenue), Google's share gains have flatlined.
If Bing does its job, people move on from our search engine pages into the Web site content that we don't control, and the final reckoning about whether they trust this information still lies before them.