Tips on How to Get into Google News Index

I am planning to get my site in Google News. How do I get approved? I read here that an autoblog got in. I was wondering is there a limit to how many post you need daily to get approved? To those who applied successfully, what are your tips?

There's a share here on BHW that deals with Google News:

http://www.blackhatworld.com/blackh...0-minutes-warriors-calling-best-wso-ever.html