When I was browsing through Google Developers (Google Glass) page I noticed a thing Stack Overflow is being represented by Github logo.
<img src="/site-assets/logo-github.svg" class="devsite-footer-promo-icon">
I already raised this issue in Google Forums here (I cannot find link to post this issue directly to Google people).
But I feel if Stack Exchange developers put request to Google requesting this be changed the process will be done earlier.
Finally they changed thanks for everyone who are part of it :)
Thanks to Danny Miller.