Are you actually in it? I mean did you apply and then get a reply advising you would be added in a few weeks?
If not, then you need to apply first.
If you are in then it depends on a lot of factors. The number of stories your site produces, their quality (length etc), your location, subject and the general weight your site carries.
Worth noting it can also fluctuate a great deal and new sites usually get a kick up for a few months and then go down.
I wonder if Google buys DIGG will we see some of that system on Google News...I hope not or a gaming war will ensue, especially with such big publishers involved.
[edited by: FattyB at 8:02 pm (utc) on July 24, 2008]