Picasa 3.8 has made it easier to organize your photos without opening your browser.
Apply Picnik’s photo-editing awesomeness to your photo and save it back to Picasa.
Then make a Face Movie out of your portraits. In this new version, you’ll also find an amped up properties panel and a new Batch upload option so you can upload your entire photo collection. 
Face Movie–You might be in charge of making a slideshow for a birthday party or wedding. Maybe you have only have two days and all you have is a bunch of group photos. Don’t panic. With the new Face Movie, you can quickly create a slideshow featuring that special someone, centered around that special someone, complete with transitions, music and captions.
Batch Upload — Manage and organize your photos — We’ve improved the the upload feature so that you can upload multiple albums to Picasa Web Albums at the same time. You can also remove albums, change upload size, visibility, or the sync state of photos that are already online on Picasa Web Albums
Edit in Picnik — Apply Picnik magic to your photo by selecting Edit in Picnik from the Basic Effects tab.
Picnik is an easy and powerful photo-editor that allows you to edit photos easily, share them and save them back to Picasa Web Albums, right in your browser.
Properties panel — Picasa now supports XMP along with EXIF data. Image data is now available in the Properties panel along with places and tags. Use the information to see exactly which camera settings you used when you took the photo.

Get started by downloading Picasa at http://picasa.google.com
From: picasa.google.com