WEll, As I know, there are posible 2 way to get listed there seen I just noted I just been listed, and yes I do ask this before on other blog, so here are two way I could see.
1.getting more than 1000 a day everyday:this is when I noted when I go to google and check out, seen the day I got 1000 average, I see if it work and I see though link under it.
2:having the site for long enough: well if u having for site for about a year, it properly show up....maybe......
3:don't care about it:Yes that the best way of all, just ignore the link under it and not checking every single day(we do have a LIFE), the time will pass and if u think u good enough, check it, and u may get lucky.
PS:Been a webmaster for a year now(well not untill tomorow,30)