Top Lists and Top Referrers

[NY Jester]

Hey all, I wanted to ask about top lists..not the spammy bullshit ones with the banners with traffic in and out next to them. But actual top referrer lists..much like those on Link-o-rama, shemp, drbizzaro's sites.

Do they come via hard links or trade script? And what is the accepted ways to send traffic to them?

Thanks for the input.