Picasa is free and easy to use photo software from Google. Google has released version 2.7 which is fully Linux compatible. Picasa won't delete your pictures or put them online without your permission. From the product home page:
Picasa is software that helps you instantly find, edit and share all the pictures on your computer. 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 will recognize. 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 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 photos home, and even post pictures on your own blog.
The release still doesn't support videos, full-screen slideshows and it's still using WINE.
Download Picasa for Linux
=> Visit official Google page to download Picasa for Linux [24 MB]
Picasa Quick Installation
Open terminal and type the following commands:
$ wget http://dl.google.com/linux/deb/pool/non-free/p/picasa/picasa_2.7.3736-7_i386.deb
$ sudo dpkg -i picasa_2.7.3736-7_i386.deb
Open Application menu to start Picasa or type the command:
Updated for accuracy.