Thumbs Up, Google
All healthy brands have to grow and evolve. The tricky part is slightly modifying a logo that is literally world famous. Occasionally an update is necessary, but you don’t want to make a change so stark that people fail to recognize the brand. Earlier this month Google tweaked their logo and I give it a thumbs up.
The new look is minimalistic and elegant, but still has the touch of playfulness that defines their brand. It is versatile when it comes to different usage and will definitely scale well without losing its quality. I think it is definitely an improvement.
Technically, the main change is the font style, they have move from a serif font to a san serif font. Check out how the images have changed in some popular views (the Google+ favicon is going to take some getting used to).
The logo refresher is the second update from a major online company this year. In July, Facebook made a slight tweak to the typeface in their logo.