Picasa also makes advanced editing simple and powerful effects fixes a single click. With Picasa, you can easily share your pictures - you can send photos by e-mail and print, to create a gift CD, and even post pictures on your blog.
Create albumsTo quickly group photos, use the "Albums" in Picasa. View photos organized into albums and share them very easy - they can make great slideshows and videos, and send to friends via e-mail.
Add tagsGold star to any photo you love: it visually highlight your favorite photos. In addition, Picasa even has a star search that reduces your entire photo collection in less than a second to the best of the best.
Keep one picture in multiple albumsPicasa creates a new "instance" of each photo you label without taking up more space on your computer, so you can put the same picture into multiple albums.
Password-protect collectionsWant to have some of the photos you own? You can add passwords to any of your collections Picasa (it does not restrict the ability to view pictures on your hard disk).
Home Page - http://picasa.google.com/features.html