Google added an excit­ing new fea­ture to Google Images: a face fil­ter to search for faces!

If you go to Google Images and type in the word you’re look­ing for and then append &imgtype=face  to the end of the search results url, Google will return images with faces only.

Here’s an exam­ple:
Search­ing for “Canada”
Search­ing for “Canada” with the face filter

Here’s a web­site that auto­mates Google’s face search