Yes indeed. I think (and the stock market too) that Google is going down. At least it is standing, which is like a loss for a company who keeps people from the balls and has access to such an amount of information.
Who's fault is this? No clue. Probably the social network effect which is taking all it can (maybe also ads), more importantly users. I am not saying that a user who wastes his time with a social network do not use google anymore but... something is happening.
I also think that Google is in a sleepy mood. No cool projects, no cool news nor campaigns. Ok, you can't be awesome anytime. You need to be DOWN for a while in order to experience an UP later. That's the rule.