Google knows differance between photos, clip art, and line drawings

Google Image Search can now tell the difference between faces, line drawings, clip art, news content, and regular photos. This is a very useful feature as it is now much easier to find clip art especially. However the ability to filter results to faces opens up obvious privacy concerns. Try searching Google Images for yourself or a relative. If the person you're searching for is prominent on the internet it is that much easier for someone to find what you look like. However, this could also be helpful. Say you're going to a class reunion and you don't remember everyone's face. You could plug them into Google and see what they look like now. All in all I think this is a very helpful feature.

Official Google Blog: New search-by-style options for Google Image Search