Whitey - 1:09 am on Apr 24, 2010 (gmt 0)
I'm sure there are many eyes looking at rapid traffic increases and link building.
Google has surely been putting a lot of effort into better algorithmic detection and more efficiency in editorial reviews of sites. They will just try to keep getting better and better at it.
Focus on good content and a few links. Natural linking is rare in those quantities , even for big sites.