Picasa is software that helps you instantly find, edit and share all the pictures on your Mac. Every time you open Picasa, it automatically locates all your pictures (even ones you forgot you had) and sorts them into visual albums organized by date with folder names you know. You can drag and drop to arrange your albums and make labels to create new groups. Picasa makes sure your pictures are always organized.

Picasa also makes advanced editing simple by putting one-click fixes and powerful effects at your fingertips.

Requirements:
OS X 10.5+
Intel

Also available is:
Intel version 3.8.9.390 for OS X 10.4.9