durga

Google is simply bored while making so much money so comfortably, with an absolutely dominant market position in search. So every few months they need to do these copycat things simply to entertain themselves ;-).

Surely you're joking, Mr Feynman is amazing.

I tried to read this book but never quite understood it. What's it really about?

If you aren't being merely rhetorical just google for Facebook quarterly earnings

Just like how google's predecessors were not keen on search relevance so that users didn't find what they were searching for quickly - leading to them spending more time on the website and increasing ad revenue. We know where that logic led those companies to ;-)

Pretty standard in my opinion. Depending on your negotiability, you're going to get diluted 10-40% in every round. Do that a few times, and you can see where one ends up :)

Amazing, practical advice. Segmenting users into happy and unhappy and then using that to ask for reviews is a really smart idea..

We have been using Amplitude at 12 Labs (getapplause.com) after having tried several analytics platforms, and it's an amazing platform. Large free tier, really intuitive interface, and the tracking is really accurate (we did rigorous testing to verify that).