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 can be downloaded here
Picasa also makes advanced editing simple by putting one-click fixes and powerful effects at your fingertips. And Picasa makes it a snap to share your pictures – you can email, print at home, make gift CDs, instantly share via Hello™, and even put pictures on your own blog.
Google's Picasa - find and edit your pictures

Google has launched a new software tool that allows you to instantly find, edit and share all pictures on your PC.