Picasa is a fast, free, user-friendly application that designers, photographers and those who deal with graphic artwork will appreciate. Uploading folders to Picasa has the ability to work with individual files both inside and outside the application, and Picasa will regularly monitor updates in the library, saving you more time.
Picassa comes in handy not only for browsing, but also for intricate work with photos and other digital images, offering handy tools for improving photos and pictures. You can do some serious editing, such as retouching, tilting and cropping, color correction and adjustment with special effects applied to photos, such as removing the red-eye effect. The edited photo does not replace the original saved in the hidden directory. Editing image files by comparing the original with the result allows you to visually track all the changes you make.
Reviews - Picasa