If you're using Google's de facto OS accessible from anywhere on the Internet (see Google Docs, etc.) you may be interested in using Picasa. It's a program that finds all your pictures and gives you basic photo manipulating tools. Like all Google programs, it makes finding your files so easy you begin to hate Microsoft for being so cumbersome. Also, it coordinates well with the internet. For example, you can find all of the pictures I've taken that are any good at my Picasa site.
Now playing: Queen - Who Wants To Live Forever