One of my two most common keywords in the content is missing entirely from Webmaster tools keyword list. Does Google filter out certain "hot spot" keywords for awhile? It makes no sense that it is missing otherwise. Has anybody else noticed this? It a new site, 3 weeks old.
How long has your website been online? Google usualy puts you in a sandbox for 2-3 monts but this varies depending on industry type or keywords being listed for..
You generally won't get sandboxed if you dive straight into getting backlinks from high page-ranked sites.