While Google+ hasn’t exactly revolutionised social sharing across the internet, you will have undoubtedly seen the ‘+1′ button cropping up on your favourite websites.
Unlike Google’s other recent change, Google Play, this change will be far more subtle, and unless you frequently hit that +1 button, you may not even notice it. Anyway, the change is below. The left hand image is before you’ve +1′d and the right, after.
[source]
