Google Will Start Reminding You of Your Friends’ Birthdays, Like Facebook
That’s right folks, when you share your day of birth with people in your G+ Circles, they’ll receive a notification when they’re on Google’s home page (and probably elsewhere, as the feature rolls out), and--wouldn’t you know it--they can use Google Plus to leave you a message or a clever photo or video.
You have to hand it to Google; using the most-used search engine on the planet to bait users into generating traffic for its also-ran social network is a smart move. On the other hand, you may not see many birthday notifications on Google, because you may not have very many colleagues, friends, or family on Google Plus.