New Features in Live Search - find faces !
https://blogs.msdn.com/livesearch/archive/2007/07/27/three-new-features-in-live-search-images.aspx
Now that is a great idea - we've all spent ages scrolling through pages of images looking for something - at least now you can narrow a search for someone when you want a face.
Try it yourself:
without the new features – jimi hendrix
with new face filtering on – jimi hendrix filter:face
with new portrait filtering on – jimi hendrix filter:portrait
with new black and white filtering on – jimi hendrix filter:bw