There are several advanced photo management programs that you can use to collect, organize, enjoy, and share all those pictures you have been taking with your digital camera. Which one is the best for you may depend on which version of Linux or which desktop environment you are using.

For KDE based distributions, like Kubuntu, DigiKam works great. If you are using GNOME, the default desktop environment for Ubuntu, F-Spot is a good choice. F-Spot is actually pre-installed in Ubuntu, and you can directly launch it from the Applications -> Graphics menu.

If you connect your digital camera through a USB connection, F-Spot can detect it and offers to import the pictures. You can than categorize them, edit them, run them in a slide show, or use any of the other functions.

As an alternative Google offers Picasa, also a program for comprehensively locating and organizing images on a computer system. It is not a native Linux application, but uses Wine when it runs on Linux.