DigitalOptics is a leader in embedded image enhancement and computational photography algorithms, including its FaceTools(TM) , HDR, panorama, multi-focus, and image stabilization products.

WSJ: Samsung Licenses DigitalOptics Face Detection and Tracking Software

Others, including eHarmony, which presents users with potential partners using algorithms designed to identify compatibility, charge a subscription.

ECONOMIST: Online dating

Tele Atlas pulls information from lots of sources, including states' departments of transportation and utilities, and uses algorithms to arbitrate conflicts.

FORBES: On The Road