White dot beside icons in Navigation Bar
What does it mean when a small white dot appears beside some of the icons within the nav bar? I assume it means that the application is running in the background. Is it prudent to "Quit" these applications or is it OK to keep it running in the background? Sometimes I don't like to Quit it, as it disappears off the nav bar and I have to retreive it. Thanks!
Intel, Mac OS X (10.6.3)