Sites get dropped...?

[Licker4U]

I was under the impression that once a free site was listed at a link list it was there forever. I just read that some link lists drop sites after 6 months. I submit to 200+/- link lists and I don't think I've ever read in any rules that sites get dropped. Is dropping sites something most link lists do or just something a handfull do?

[Fonz]

Most LL's keep your site listed forever. Some drop it after x amount of time, others drop it after it hasn't been updated in the last 6 months :)