Good question... Out is the number of people who have left topwebcomics to visit the listed site. So for example, 2888 people have visited Bigger Than cheeses by directly clicking on the bigger than cheeses banner.
It isn't really a rank, though it shows how many other people were interested enough to visit the comic from the list. It doesn't reset, and isn't tracked by IP. It could be changed at any time, if someone thought it should be, but currently it is just sorta...there...
Richard M.
Grimfang"Whisper"Xaeraes