Even when I'm not using my internet connection, I see varying network usage in the network monitor applet in Fedora 14. So I decided to use nethogs to monitor process IDs of the involved processes.
I fail to comprehend which process/service/application is trying to access the internet/network on my WiFi.
Here's a screenshot of nethogs:

I understand that Firefox is in there, as I was using it when taking the screenshot, but what do the first two or three lines mean in the PROGRAM field, with data rates 0.015 and 0.013 KB/sec?