They always say the first thing you do as a BOSS is change something, right away. Looks like Google is making a statement, a new logo. This is not the first time Google’s logo has been updated, and after the recent Facebook logo change the silicon valley peer pressure is ON. I think the team at Google did a great job updating a logo that still represents the company and is not TOO drastic… Subtlety is always required when you have the “most visiting website in the world” if you make too many change people panic.
Here are two links that go in more details:
Google Analytics data in the last 4 months has been getting spam from “ghost visits” this process will help you filter out the ghosts from your Google Analytics data. There are two parts to this one to prevent future visits from showing up (filters) and one to clean up historical data (segments)
Here is step by step instruction from Carlos Escalera on how to fix it.
I would also reccomend reading the comments page for more info on that website.