Picasa 3.5 has added Face Recognition to the latest version of the popular free image editing and uploading software. The face recognition will let you tag your friends, and then find all other images with similar looking people ready for you to confirm the label.
“Add name tags – Picasa 3.5 scans all the photos in your collection, identifies the ones with faces, and groups photos with similar faces together. It’s easy to add name tags to dozens of photos at once by clicking “Add a name” below a photo and typing the person’s name. Once you’ve tagged some pictures, you can make a face collage with one click, easily find all your pictures with the same two people in them, or upload your name tags to Picasa Web Albums.”