Picasa lets you organize, edit, share, and order photos from your PC or Mac. Once you install it, Picasa will automatically import your computer's photos and organize them in the same folder structure as your hard drive. View slideshows, create collages, make movies, and geo-tag your photos to save the location where the photo was taken within the photo's file data. You can also order prints and fun creative products using your photos directly through Picasa: select the photos, then click "Shop" at the bottom. Back-up your photos online with on-line Picasa.