Referrers

In the referrers of other weblogs, e.g. in the elephäntville-referrers, I can see the links where the visitors have come from. In my referrers, I can see the traffic within my weblog (example: irene.antville.org ) - not just the visitors from outside. It's the same with the backlinks.

This is no problem at the moment, but I would like to know where the difference depends on.